git.oblomov.eu Git - linux-2.6/blob - drivers/net/wireless/wavelan.c

   1 /*
   2  *      WaveLAN ISA driver
   3  *
   4  *              Jean II - HPLB '96
   5  *
   6  * Reorganisation and extension of the driver.
   7  * Original copyright follows (also see the end of this file).
   8  * See wavelan.p.h for details.
   9  *
  10  *
  11  *
  12  * AT&T GIS (nee NCR) WaveLAN card:
  13  *      An Ethernet-like radio transceiver
  14  *      controlled by an Intel 82586 coprocessor.
  15  */
  16
  17 #include "wavelan.p.h"          /* Private header */
  18
  19 /************************* MISC SUBROUTINES **************************/
  20 /*
  21  * Subroutines which won't fit in one of the following category
  22  * (WaveLAN modem or i82586)
  23  */
  24
  25 /*------------------------------------------------------------------*/
  26 /*
  27  * Translate irq number to PSA irq parameter
  28  */
  29 static u8 wv_irq_to_psa(int irq)
  30 {
  31         if (irq < 0 || irq >= ARRAY_SIZE(irqvals))
  32                 return 0;
  33
  34         return irqvals[irq];
  35 }
  36
  37 /*------------------------------------------------------------------*/
  38 /*
  39  * Translate PSA irq parameter to irq number
  40  */
  41 static int __init wv_psa_to_irq(u8 irqval)
  42 {
  43         int i;
  44
  45         for (i = 0; i < ARRAY_SIZE(irqvals); i++)
  46                 if (irqvals[i] == irqval)
  47                         return i;
  48
  49         return -1;
  50 }
  51
  52 /********************* HOST ADAPTER SUBROUTINES *********************/
  53 /*
  54  * Useful subroutines to manage the WaveLAN ISA interface
  55  *
  56  * One major difference with the PCMCIA hardware (except the port mapping)
  57  * is that we have to keep the state of the Host Control Register
  58  * because of the interrupt enable & bus size flags.
  59  */
  60
  61 /*------------------------------------------------------------------*/
  62 /*
  63  * Read from card's Host Adaptor Status Register.
  64  */
  65 static inline u16 hasr_read(unsigned long ioaddr)
  66 {
  67         return (inw(HASR(ioaddr)));
  68 }                               /* hasr_read */
  69
  70 /*------------------------------------------------------------------*/
  71 /*
  72  * Write to card's Host Adapter Command Register.
  73  */
  74 static inline void hacr_write(unsigned long ioaddr, u16 hacr)
  75 {
  76         outw(hacr, HACR(ioaddr));
  77 }                               /* hacr_write */
  78
  79 /*------------------------------------------------------------------*/
  80 /*
  81  * Write to card's Host Adapter Command Register. Include a delay for
  82  * those times when it is needed.
  83  */
  84 static void hacr_write_slow(unsigned long ioaddr, u16 hacr)
  85 {
  86         hacr_write(ioaddr, hacr);
  87         /* delay might only be needed sometimes */
  88         mdelay(1);
  89 }                               /* hacr_write_slow */
  90
  91 /*------------------------------------------------------------------*/
  92 /*
  93  * Set the channel attention bit.
  94  */
  95 static inline void set_chan_attn(unsigned long ioaddr, u16 hacr)
  96 {
  97         hacr_write(ioaddr, hacr | HACR_CA);
  98 }                               /* set_chan_attn */
  99
 100 /*------------------------------------------------------------------*/
 101 /*
 102  * Reset, and then set host adaptor into default mode.
 103  */
 104 static inline void wv_hacr_reset(unsigned long ioaddr)
 105 {
 106         hacr_write_slow(ioaddr, HACR_RESET);
 107         hacr_write(ioaddr, HACR_DEFAULT);
 108 }                               /* wv_hacr_reset */
 109
 110 /*------------------------------------------------------------------*/
 111 /*
 112  * Set the I/O transfer over the ISA bus to 8-bit mode
 113  */
 114 static inline void wv_16_off(unsigned long ioaddr, u16 hacr)
 115 {
 116         hacr &= ~HACR_16BITS;
 117         hacr_write(ioaddr, hacr);
 118 }                               /* wv_16_off */
 119
 120 /*------------------------------------------------------------------*/
 121 /*
 122  * Set the I/O transfer over the ISA bus to 8-bit mode
 123  */
 124 static inline void wv_16_on(unsigned long ioaddr, u16 hacr)
 125 {
 126         hacr |= HACR_16BITS;
 127         hacr_write(ioaddr, hacr);
 128 }                               /* wv_16_on */
 129
 130 /*------------------------------------------------------------------*/
 131 /*
 132  * Disable interrupts on the WaveLAN hardware.
 133  * (called by wv_82586_stop())
 134  */
 135 static inline void wv_ints_off(struct net_device * dev)
 136 {
 137         net_local *lp = netdev_priv(dev);
 138         unsigned long ioaddr = dev->base_addr;
 139
 140         lp->hacr &= ~HACR_INTRON;
 141         hacr_write(ioaddr, lp->hacr);
 142 }                               /* wv_ints_off */
 143
 144 /*------------------------------------------------------------------*/
 145 /*
 146  * Enable interrupts on the WaveLAN hardware.
 147  * (called by wv_hw_reset())
 148  */
 149 static inline void wv_ints_on(struct net_device * dev)
 150 {
 151         net_local *lp = netdev_priv(dev);
 152         unsigned long ioaddr = dev->base_addr;
 153
 154         lp->hacr |= HACR_INTRON;
 155         hacr_write(ioaddr, lp->hacr);
 156 }                               /* wv_ints_on */
 157
 158 /******************* MODEM MANAGEMENT SUBROUTINES *******************/
 159 /*
 160  * Useful subroutines to manage the modem of the WaveLAN
 161  */
 162
 163 /*------------------------------------------------------------------*/
 164 /*
 165  * Read the Parameter Storage Area from the WaveLAN card's memory
 166  */
 167 /*
 168  * Read bytes from the PSA.
 169  */
 170 static void psa_read(unsigned long ioaddr, u16 hacr, int o,     /* offset in PSA */
 171                      u8 * b,    /* buffer to fill */
 172                      int n)
 173 {                               /* size to read */
 174         wv_16_off(ioaddr, hacr);
 175
 176         while (n-- > 0) {
 177                 outw(o, PIOR2(ioaddr));
 178                 o++;
 179                 *b++ = inb(PIOP2(ioaddr));
 180         }
 181
 182         wv_16_on(ioaddr, hacr);
 183 }                               /* psa_read */
 184
 185 /*------------------------------------------------------------------*/
 186 /*
 187  * Write the Parameter Storage Area to the WaveLAN card's memory.
 188  */
 189 static void psa_write(unsigned long ioaddr, u16 hacr, int o,    /* Offset in PSA */
 190                       u8 * b,   /* Buffer in memory */
 191                       int n)
 192 {                               /* Length of buffer */
 193         int count = 0;
 194
 195         wv_16_off(ioaddr, hacr);
 196
 197         while (n-- > 0) {
 198                 outw(o, PIOR2(ioaddr));
 199                 o++;
 200
 201                 outb(*b, PIOP2(ioaddr));
 202                 b++;
 203
 204                 /* Wait for the memory to finish its write cycle */
 205                 count = 0;
 206                 while ((count++ < 100) &&
 207                        (hasr_read(ioaddr) & HASR_PSA_BUSY)) mdelay(1);
 208         }
 209
 210         wv_16_on(ioaddr, hacr);
 211 }                               /* psa_write */
 212
 213 #ifdef SET_PSA_CRC
 214 /*------------------------------------------------------------------*/
 215 /*
 216  * Calculate the PSA CRC
 217  * Thanks to Valster, Nico <NVALSTER@wcnd.nl.lucent.com> for the code
 218  * NOTE: By specifying a length including the CRC position the
 219  * returned value should be zero. (i.e. a correct checksum in the PSA)
 220  *
 221  * The Windows drivers don't use the CRC, but the AP and the PtP tool
 222  * depend on it.
 223  */
 224 static u16 psa_crc(u8 * psa,    /* The PSA */
 225                               int size)
 226 {                               /* Number of short for CRC */
 227         int byte_cnt;           /* Loop on the PSA */
 228         u16 crc_bytes = 0;      /* Data in the PSA */
 229         int bit_cnt;            /* Loop on the bits of the short */
 230
 231         for (byte_cnt = 0; byte_cnt < size; byte_cnt++) {
 232                 crc_bytes ^= psa[byte_cnt];     /* Its an xor */
 233
 234                 for (bit_cnt = 1; bit_cnt < 9; bit_cnt++) {
 235                         if (crc_bytes & 0x0001)
 236                                 crc_bytes = (crc_bytes >> 1) ^ 0xA001;
 237                         else
 238                                 crc_bytes >>= 1;
 239                 }
 240         }
 241
 242         return crc_bytes;
 243 }                               /* psa_crc */
 244 #endif                          /* SET_PSA_CRC */
 245
 246 /*------------------------------------------------------------------*/
 247 /*
 248  * update the checksum field in the Wavelan's PSA
 249  */
 250 static void update_psa_checksum(struct net_device * dev, unsigned long ioaddr, u16 hacr)
 251 {
 252 #ifdef SET_PSA_CRC
 253         psa_t psa;
 254         u16 crc;
 255
 256         /* read the parameter storage area */
 257         psa_read(ioaddr, hacr, 0, (unsigned char *) &psa, sizeof(psa));
 258
 259         /* update the checksum */
 260         crc = psa_crc((unsigned char *) &psa,
 261                       sizeof(psa) - sizeof(psa.psa_crc[0]) -
 262                       sizeof(psa.psa_crc[1])
 263                       - sizeof(psa.psa_crc_status));
 264
 265         psa.psa_crc[0] = crc & 0xFF;
 266         psa.psa_crc[1] = (crc & 0xFF00) >> 8;
 267
 268         /* Write it ! */
 269         psa_write(ioaddr, hacr, (char *) &psa.psa_crc - (char *) &psa,
 270                   (unsigned char *) &psa.psa_crc, 2);
 271
 272 #ifdef DEBUG_IOCTL_INFO
 273         printk(KERN_DEBUG "%s: update_psa_checksum(): crc = 0x%02x%02x\n",
 274                dev->name, psa.psa_crc[0], psa.psa_crc[1]);
 275
 276         /* Check again (luxury !) */
 277         crc = psa_crc((unsigned char *) &psa,
 278                       sizeof(psa) - sizeof(psa.psa_crc_status));
 279
 280         if (crc != 0)
 281                 printk(KERN_WARNING
 282                        "%s: update_psa_checksum(): CRC does not agree with PSA data (even after recalculating)\n",
 283                        dev->name);
 284 #endif                          /* DEBUG_IOCTL_INFO */
 285 #endif                          /* SET_PSA_CRC */
 286 }                               /* update_psa_checksum */
 287
 288 /*------------------------------------------------------------------*/
 289 /*
 290  * Write 1 byte to the MMC.
 291  */
 292 static void mmc_out(unsigned long ioaddr, u16 o, u8 d)
 293 {
 294         int count = 0;
 295
 296         /* Wait for MMC to go idle */
 297         while ((count++ < 100) && (inw(HASR(ioaddr)) & HASR_MMC_BUSY))
 298                 udelay(10);
 299
 300         outw((u16) (((u16) d << 8) | (o << 1) | 1), MMCR(ioaddr));
 301 }
 302
 303 /*------------------------------------------------------------------*/
 304 /*
 305  * Routine to write bytes to the Modem Management Controller.
 306  * We start at the end because it is the way it should be!
 307  */
 308 static void mmc_write(unsigned long ioaddr, u8 o, u8 * b, int n)
 309 {
 310         o += n;
 311         b += n;
 312
 313         while (n-- > 0)
 314                 mmc_out(ioaddr, --o, *(--b));
 315 }                               /* mmc_write */
 316
 317 /*------------------------------------------------------------------*/
 318 /*
 319  * Read a byte from the MMC.
 320  * Optimised version for 1 byte, avoid using memory.
 321  */
 322 static u8 mmc_in(unsigned long ioaddr, u16 o)
 323 {
 324         int count = 0;
 325
 326         while ((count++ < 100) && (inw(HASR(ioaddr)) & HASR_MMC_BUSY))
 327                 udelay(10);
 328         outw(o << 1, MMCR(ioaddr));
 329
 330         while ((count++ < 100) && (inw(HASR(ioaddr)) & HASR_MMC_BUSY))
 331                 udelay(10);
 332         return (u8) (inw(MMCR(ioaddr)) >> 8);
 333 }
 334
 335 /*------------------------------------------------------------------*/
 336 /*
 337  * Routine to read bytes from the Modem Management Controller.
 338  * The implementation is complicated by a lack of address lines,
 339  * which prevents decoding of the low-order bit.
 340  * (code has just been moved in the above function)
 341  * We start at the end because it is the way it should be!
 342  */
 343 static inline void mmc_read(unsigned long ioaddr, u8 o, u8 * b, int n)
 344 {
 345         o += n;
 346         b += n;
 347
 348         while (n-- > 0)
 349                 *(--b) = mmc_in(ioaddr, --o);
 350 }                               /* mmc_read */
 351
 352 /*------------------------------------------------------------------*/
 353 /*
 354  * Get the type of encryption available.
 355  */
 356 static inline int mmc_encr(unsigned long ioaddr)
 357 {                               /* I/O port of the card */
 358         int temp;
 359
 360         temp = mmc_in(ioaddr, mmroff(0, mmr_des_avail));
 361         if ((temp != MMR_DES_AVAIL_DES) && (temp != MMR_DES_AVAIL_AES))
 362                 return 0;
 363         else
 364                 return temp;
 365 }
 366
 367 /*------------------------------------------------------------------*/
 368 /*
 369  * Wait for the frequency EEPROM to complete a command.
 370  * I hope this one will be optimally inlined.
 371  */
 372 static inline void fee_wait(unsigned long ioaddr,       /* I/O port of the card */
 373                             int delay,  /* Base delay to wait for */
 374                             int number)
 375 {                               /* Number of time to wait */
 376         int count = 0;          /* Wait only a limited time */
 377
 378         while ((count++ < number) &&
 379                (mmc_in(ioaddr, mmroff(0, mmr_fee_status)) &
 380                 MMR_FEE_STATUS_BUSY)) udelay(delay);
 381 }
 382
 383 /*------------------------------------------------------------------*/
 384 /*
 385  * Read bytes from the Frequency EEPROM (frequency select cards).
 386  */
 387 static void fee_read(unsigned long ioaddr,      /* I/O port of the card */
 388                      u16 o,     /* destination offset */
 389                      u16 * b,   /* data buffer */
 390                      int n)
 391 {                               /* number of registers */
 392         b += n;                 /* Position at the end of the area */
 393
 394         /* Write the address */
 395         mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), o + n - 1);
 396
 397         /* Loop on all buffer */
 398         while (n-- > 0) {
 399                 /* Write the read command */
 400                 mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl),
 401                         MMW_FEE_CTRL_READ);
 402
 403                 /* Wait until EEPROM is ready (should be quick). */
 404                 fee_wait(ioaddr, 10, 100);
 405
 406                 /* Read the value. */
 407                 *--b = ((mmc_in(ioaddr, mmroff(0, mmr_fee_data_h)) << 8) |
 408                         mmc_in(ioaddr, mmroff(0, mmr_fee_data_l)));
 409         }
 410 }
 411
 412
 413 /*------------------------------------------------------------------*/
 414 /*
 415  * Write bytes from the Frequency EEPROM (frequency select cards).
 416  * This is a bit complicated, because the frequency EEPROM has to
 417  * be unprotected and the write enabled.
 418  * Jean II
 419  */
 420 static void fee_write(unsigned long ioaddr,     /* I/O port of the card */
 421                       u16 o,    /* destination offset */
 422                       u16 * b,  /* data buffer */
 423                       int n)
 424 {                               /* number of registers */
 425         b += n;                 /* Position at the end of the area. */
 426
 427 #ifdef EEPROM_IS_PROTECTED      /* disabled */
 428 #ifdef DOESNT_SEEM_TO_WORK      /* disabled */
 429         /* Ask to read the protected register */
 430         mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRREAD);
 431
 432         fee_wait(ioaddr, 10, 100);
 433
 434         /* Read the protected register. */
 435         printk("Protected 2:  %02X-%02X\n",
 436                mmc_in(ioaddr, mmroff(0, mmr_fee_data_h)),
 437                mmc_in(ioaddr, mmroff(0, mmr_fee_data_l)));
 438 #endif                          /* DOESNT_SEEM_TO_WORK */
 439
 440         /* Enable protected register. */
 441         mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_EN);
 442         mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PREN);
 443
 444         fee_wait(ioaddr, 10, 100);
 445
 446         /* Unprotect area. */
 447         mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), o + n);
 448         mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRWRITE);
 449 #ifdef DOESNT_SEEM_TO_WORK      /* disabled */
 450         /* or use: */
 451         mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRCLEAR);
 452 #endif                          /* DOESNT_SEEM_TO_WORK */
 453
 454         fee_wait(ioaddr, 10, 100);
 455 #endif                          /* EEPROM_IS_PROTECTED */
 456
 457         /* Write enable. */
 458         mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_EN);
 459         mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_WREN);
 460
 461         fee_wait(ioaddr, 10, 100);
 462
 463         /* Write the EEPROM address. */
 464         mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), o + n - 1);
 465
 466         /* Loop on all buffer */
 467         while (n-- > 0) {
 468                 /* Write the value. */
 469                 mmc_out(ioaddr, mmwoff(0, mmw_fee_data_h), (*--b) >> 8);
 470                 mmc_out(ioaddr, mmwoff(0, mmw_fee_data_l), *b & 0xFF);
 471
 472                 /* Write the write command. */
 473                 mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl),
 474                         MMW_FEE_CTRL_WRITE);
 475
 476                 /* WaveLAN documentation says to wait at least 10 ms for EEBUSY = 0 */
 477                 mdelay(10);
 478                 fee_wait(ioaddr, 10, 100);
 479         }
 480
 481         /* Write disable. */
 482         mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_DS);
 483         mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_WDS);
 484
 485         fee_wait(ioaddr, 10, 100);
 486
 487 #ifdef EEPROM_IS_PROTECTED      /* disabled */
 488         /* Reprotect EEPROM. */
 489         mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), 0x00);
 490         mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRWRITE);
 491
 492         fee_wait(ioaddr, 10, 100);
 493 #endif                          /* EEPROM_IS_PROTECTED */
 494 }
 495
 496 /************************ I82586 SUBROUTINES *************************/
 497 /*
 498  * Useful subroutines to manage the Ethernet controller
 499  */
 500
 501 /*------------------------------------------------------------------*/
 502 /*
 503  * Read bytes from the on-board RAM.
 504  * Why does inlining this function make it fail?
 505  */
 506 static /*inline */ void obram_read(unsigned long ioaddr,
 507                                    u16 o, u8 * b, int n)
 508 {
 509         outw(o, PIOR1(ioaddr));
 510         insw(PIOP1(ioaddr), (unsigned short *) b, (n + 1) >> 1);
 511 }
 512
 513 /*------------------------------------------------------------------*/
 514 /*
 515  * Write bytes to the on-board RAM.
 516  */
 517 static inline void obram_write(unsigned long ioaddr, u16 o, u8 * b, int n)
 518 {
 519         outw(o, PIOR1(ioaddr));
 520         outsw(PIOP1(ioaddr), (unsigned short *) b, (n + 1) >> 1);
 521 }
 522
 523 /*------------------------------------------------------------------*/
 524 /*
 525  * Acknowledge the reading of the status issued by the i82586.
 526  */
 527 static void wv_ack(struct net_device * dev)
 528 {
 529         net_local *lp = netdev_priv(dev);
 530         unsigned long ioaddr = dev->base_addr;
 531         u16 scb_cs;
 532         int i;
 533
 534         obram_read(ioaddr, scboff(OFFSET_SCB, scb_status),
 535                    (unsigned char *) &scb_cs, sizeof(scb_cs));
 536         scb_cs &= SCB_ST_INT;
 537
 538         if (scb_cs == 0)
 539                 return;
 540
 541         obram_write(ioaddr, scboff(OFFSET_SCB, scb_command),
 542                     (unsigned char *) &scb_cs, sizeof(scb_cs));
 543
 544         set_chan_attn(ioaddr, lp->hacr);
 545
 546         for (i = 1000; i > 0; i--) {
 547                 obram_read(ioaddr, scboff(OFFSET_SCB, scb_command),
 548                            (unsigned char *) &scb_cs, sizeof(scb_cs));
 549                 if (scb_cs == 0)
 550                         break;
 551
 552                 udelay(10);
 553         }
 554         udelay(100);
 555
 556 #ifdef DEBUG_CONFIG_ERROR
 557         if (i <= 0)
 558                 printk(KERN_INFO
 559                        "%s: wv_ack(): board not accepting command.\n",
 560                        dev->name);
 561 #endif
 562 }
 563
 564 /*------------------------------------------------------------------*/
 565 /*
 566  * Set channel attention bit and busy wait until command has
 567  * completed, then acknowledge completion of the command.
 568  */
 569 static int wv_synchronous_cmd(struct net_device * dev, const char *str)
 570 {
 571         net_local *lp = netdev_priv(dev);
 572         unsigned long ioaddr = dev->base_addr;
 573         u16 scb_cmd;
 574         ach_t cb;
 575         int i;
 576
 577         scb_cmd = SCB_CMD_CUC & SCB_CMD_CUC_GO;
 578         obram_write(ioaddr, scboff(OFFSET_SCB, scb_command),
 579                     (unsigned char *) &scb_cmd, sizeof(scb_cmd));
 580
 581         set_chan_attn(ioaddr, lp->hacr);
 582
 583         for (i = 1000; i > 0; i--) {
 584                 obram_read(ioaddr, OFFSET_CU, (unsigned char *) &cb,
 585                            sizeof(cb));
 586                 if (cb.ac_status & AC_SFLD_C)
 587                         break;
 588
 589                 udelay(10);
 590         }
 591         udelay(100);
 592
 593         if (i <= 0 || !(cb.ac_status & AC_SFLD_OK)) {
 594 #ifdef DEBUG_CONFIG_ERROR
 595                 printk(KERN_INFO "%s: %s failed; status = 0x%x\n",
 596                        dev->name, str, cb.ac_status);
 597 #endif
 598 #ifdef DEBUG_I82586_SHOW
 599                 wv_scb_show(ioaddr);
 600 #endif
 601                 return -1;
 602         }
 603
 604         /* Ack the status */
 605         wv_ack(dev);
 606
 607         return 0;
 608 }
 609
 610 /*------------------------------------------------------------------*/
 611 /*
 612  * Configuration commands completion interrupt.
 613  * Check if done, and if OK.
 614  */
 615 static int
 616 wv_config_complete(struct net_device * dev, unsigned long ioaddr, net_local * lp)
 617 {
 618         unsigned short mcs_addr;
 619         unsigned short status;
 620         int ret;
 621
 622 #ifdef DEBUG_INTERRUPT_TRACE
 623         printk(KERN_DEBUG "%s: ->wv_config_complete()\n", dev->name);
 624 #endif
 625
 626         mcs_addr = lp->tx_first_in_use + sizeof(ac_tx_t) + sizeof(ac_nop_t)
 627             + sizeof(tbd_t) + sizeof(ac_cfg_t) + sizeof(ac_ias_t);
 628
 629         /* Read the status of the last command (set mc list). */
 630         obram_read(ioaddr, acoff(mcs_addr, ac_status),
 631                    (unsigned char *) &status, sizeof(status));
 632
 633         /* If not completed -> exit */
 634         if ((status & AC_SFLD_C) == 0)
 635                 ret = 0;        /* Not ready to be scrapped */
 636         else {
 637 #ifdef DEBUG_CONFIG_ERROR
 638                 unsigned short cfg_addr;
 639                 unsigned short ias_addr;
 640
 641                 /* Check mc_config command */
 642                 if ((status & AC_SFLD_OK) != AC_SFLD_OK)
 643                         printk(KERN_INFO
 644                                "%s: wv_config_complete(): set_multicast_address failed; status = 0x%x\n",
 645                                dev->name, status);
 646
 647                 /* check ia-config command */
 648                 ias_addr = mcs_addr - sizeof(ac_ias_t);
 649                 obram_read(ioaddr, acoff(ias_addr, ac_status),
 650                            (unsigned char *) &status, sizeof(status));
 651                 if ((status & AC_SFLD_OK) != AC_SFLD_OK)
 652                         printk(KERN_INFO
 653                                "%s: wv_config_complete(): set_MAC_address failed; status = 0x%x\n",
 654                                dev->name, status);
 655
 656                 /* Check config command. */
 657                 cfg_addr = ias_addr - sizeof(ac_cfg_t);
 658                 obram_read(ioaddr, acoff(cfg_addr, ac_status),
 659                            (unsigned char *) &status, sizeof(status));
 660                 if ((status & AC_SFLD_OK) != AC_SFLD_OK)
 661                         printk(KERN_INFO
 662                                "%s: wv_config_complete(): configure failed; status = 0x%x\n",
 663                                dev->name, status);
 664 #endif  /* DEBUG_CONFIG_ERROR */
 665
 666                 ret = 1;        /* Ready to be scrapped */
 667         }
 668
 669 #ifdef DEBUG_INTERRUPT_TRACE
 670         printk(KERN_DEBUG "%s: <-wv_config_complete() - %d\n", dev->name,
 671                ret);
 672 #endif
 673         return ret;
 674 }
 675
 676 /*------------------------------------------------------------------*/
 677 /*
 678  * Command completion interrupt.
 679  * Reclaim as many freed tx buffers as we can.
 680  * (called in wavelan_interrupt()).
 681  * Note : the spinlock is already grabbed for us.
 682  */
 683 static int wv_complete(struct net_device * dev, unsigned long ioaddr, net_local * lp)
 684 {
 685         int nreaped = 0;
 686
 687 #ifdef DEBUG_INTERRUPT_TRACE
 688         printk(KERN_DEBUG "%s: ->wv_complete()\n", dev->name);
 689 #endif
 690
 691         /* Loop on all the transmit buffers */
 692         while (lp->tx_first_in_use != I82586NULL) {
 693                 unsigned short tx_status;
 694
 695                 /* Read the first transmit buffer */
 696                 obram_read(ioaddr, acoff(lp->tx_first_in_use, ac_status),
 697                            (unsigned char *) &tx_status,
 698                            sizeof(tx_status));
 699
 700                 /* If not completed -> exit */
 701                 if ((tx_status & AC_SFLD_C) == 0)
 702                         break;
 703
 704                 /* Hack for reconfiguration */
 705                 if (tx_status == 0xFFFF)
 706                         if (!wv_config_complete(dev, ioaddr, lp))
 707                                 break;  /* Not completed */
 708
 709                 /* We now remove this buffer */
 710                 nreaped++;
 711                 --lp->tx_n_in_use;
 712
 713 /*
 714 if (lp->tx_n_in_use > 0)
 715         printk("%c", "0123456789abcdefghijk"[lp->tx_n_in_use]);
 716 */
 717
 718                 /* Was it the last one? */
 719                 if (lp->tx_n_in_use <= 0)
 720                         lp->tx_first_in_use = I82586NULL;
 721                 else {
 722                         /* Next one in the chain */
 723                         lp->tx_first_in_use += TXBLOCKZ;
 724                         if (lp->tx_first_in_use >=
 725                             OFFSET_CU +
 726                             NTXBLOCKS * TXBLOCKZ) lp->tx_first_in_use -=
 727                                     NTXBLOCKS * TXBLOCKZ;
 728                 }
 729
 730                 /* Hack for reconfiguration */
 731                 if (tx_status == 0xFFFF)
 732                         continue;
 733
 734                 /* Now, check status of the finished command */
 735                 if (tx_status & AC_SFLD_OK) {
 736                         int ncollisions;
 737
 738                         dev->stats.tx_packets++;
 739                         ncollisions = tx_status & AC_SFLD_MAXCOL;
 740                         dev->stats.collisions += ncollisions;
 741 #ifdef DEBUG_TX_INFO
 742                         if (ncollisions > 0)
 743                                 printk(KERN_DEBUG
 744                                        "%s: wv_complete(): tx completed after %d collisions.\n",
 745                                        dev->name, ncollisions);
 746 #endif
 747                 } else {
 748                         dev->stats.tx_errors++;
 749                         if (tx_status & AC_SFLD_S10) {
 750                                 dev->stats.tx_carrier_errors++;
 751 #ifdef DEBUG_TX_FAIL
 752                                 printk(KERN_DEBUG
 753                                        "%s: wv_complete(): tx error: no CS.\n",
 754                                        dev->name);
 755 #endif
 756                         }
 757                         if (tx_status & AC_SFLD_S9) {
 758                                 dev->stats.tx_carrier_errors++;
 759 #ifdef DEBUG_TX_FAIL
 760                                 printk(KERN_DEBUG
 761                                        "%s: wv_complete(): tx error: lost CTS.\n",
 762                                        dev->name);
 763 #endif
 764                         }
 765                         if (tx_status & AC_SFLD_S8) {
 766                                 dev->stats.tx_fifo_errors++;
 767 #ifdef DEBUG_TX_FAIL
 768                                 printk(KERN_DEBUG
 769                                        "%s: wv_complete(): tx error: slow DMA.\n",
 770                                        dev->name);
 771 #endif
 772                         }
 773                         if (tx_status & AC_SFLD_S6) {
 774                                 dev->stats.tx_heartbeat_errors++;
 775 #ifdef DEBUG_TX_FAIL
 776                                 printk(KERN_DEBUG
 777                                        "%s: wv_complete(): tx error: heart beat.\n",
 778                                        dev->name);
 779 #endif
 780                         }
 781                         if (tx_status & AC_SFLD_S5) {
 782                                 dev->stats.tx_aborted_errors++;
 783 #ifdef DEBUG_TX_FAIL
 784                                 printk(KERN_DEBUG
 785                                        "%s: wv_complete(): tx error: too many collisions.\n",
 786                                        dev->name);
 787 #endif
 788                         }
 789                 }
 790
 791 #ifdef DEBUG_TX_INFO
 792                 printk(KERN_DEBUG
 793                        "%s: wv_complete(): tx completed, tx_status 0x%04x\n",
 794                        dev->name, tx_status);
 795 #endif
 796         }
 797
 798 #ifdef DEBUG_INTERRUPT_INFO
 799         if (nreaped > 1)
 800                 printk(KERN_DEBUG "%s: wv_complete(): reaped %d\n",
 801                        dev->name, nreaped);
 802 #endif
 803
 804         /*
 805          * Inform upper layers.
 806          */
 807         if (lp->tx_n_in_use < NTXBLOCKS - 1) {
 808                 netif_wake_queue(dev);
 809         }
 810 #ifdef DEBUG_INTERRUPT_TRACE
 811         printk(KERN_DEBUG "%s: <-wv_complete()\n", dev->name);
 812 #endif
 813         return nreaped;
 814 }
 815
 816 /*------------------------------------------------------------------*/
 817 /*
 818  * Reconfigure the i82586, or at least ask for it.
 819  * Because wv_82586_config uses a transmission buffer, we must do it
 820  * when we are sure that there is one left, so we do it now
 821  * or in wavelan_packet_xmit() (I can't find any better place,
 822  * wavelan_interrupt is not an option), so you may experience
 823  * delays sometimes.
 824  */
 825 static void wv_82586_reconfig(struct net_device * dev)
 826 {
 827         net_local *lp = netdev_priv(dev);
 828         unsigned long flags;
 829
 830         /* Arm the flag, will be cleard in wv_82586_config() */
 831         lp->reconfig_82586 = 1;
 832
 833         /* Check if we can do it now ! */
 834         if((netif_running(dev)) && !(netif_queue_stopped(dev))) {
 835                 spin_lock_irqsave(&lp->spinlock, flags);
 836                 /* May fail */
 837                 wv_82586_config(dev);
 838                 spin_unlock_irqrestore(&lp->spinlock, flags);
 839         }
 840         else {
 841 #ifdef DEBUG_CONFIG_INFO
 842                 printk(KERN_DEBUG
 843                        "%s: wv_82586_reconfig(): delayed (state = %lX)\n",
 844                                dev->name, dev->state);
 845 #endif
 846         }
 847 }
 848
 849 /********************* DEBUG & INFO SUBROUTINES *********************/
 850 /*
 851  * This routine is used in the code to show information for debugging.
 852  * Most of the time, it dumps the contents of hardware structures.
 853  */
 854
 855 #ifdef DEBUG_PSA_SHOW
 856 /*------------------------------------------------------------------*/
 857 /*
 858  * Print the formatted contents of the Parameter Storage Area.
 859  */
 860 static void wv_psa_show(psa_t * p)
 861 {
 862         printk(KERN_DEBUG "##### WaveLAN PSA contents: #####\n");
 863         printk(KERN_DEBUG "psa_io_base_addr_1: 0x%02X %02X %02X %02X\n",
 864                p->psa_io_base_addr_1,
 865                p->psa_io_base_addr_2,
 866                p->psa_io_base_addr_3, p->psa_io_base_addr_4);
 867         printk(KERN_DEBUG "psa_rem_boot_addr_1: 0x%02X %02X %02X\n",
 868                p->psa_rem_boot_addr_1,
 869                p->psa_rem_boot_addr_2, p->psa_rem_boot_addr_3);
 870         printk(KERN_DEBUG "psa_holi_params: 0x%02x, ", p->psa_holi_params);
 871         printk("psa_int_req_no: %d\n", p->psa_int_req_no);
 872 #ifdef DEBUG_SHOW_UNUSED
 873         printk(KERN_DEBUG "psa_unused0[]: %pM\n", p->psa_unused0);
 874 #endif                          /* DEBUG_SHOW_UNUSED */
 875         printk(KERN_DEBUG "psa_univ_mac_addr[]: %pM\n", p->psa_univ_mac_addr);
 876         printk(KERN_DEBUG "psa_local_mac_addr[]: %pM\n", p->psa_local_mac_addr);
 877         printk(KERN_DEBUG "psa_univ_local_sel: %d, ",
 878                p->psa_univ_local_sel);
 879         printk("psa_comp_number: %d, ", p->psa_comp_number);
 880         printk("psa_thr_pre_set: 0x%02x\n", p->psa_thr_pre_set);
 881         printk(KERN_DEBUG "psa_feature_select/decay_prm: 0x%02x, ",
 882                p->psa_feature_select);
 883         printk("psa_subband/decay_update_prm: %d\n", p->psa_subband);
 884         printk(KERN_DEBUG "psa_quality_thr: 0x%02x, ", p->psa_quality_thr);
 885         printk("psa_mod_delay: 0x%02x\n", p->psa_mod_delay);
 886         printk(KERN_DEBUG "psa_nwid: 0x%02x%02x, ", p->psa_nwid[0],
 887                p->psa_nwid[1]);
 888         printk("psa_nwid_select: %d\n", p->psa_nwid_select);
 889         printk(KERN_DEBUG "psa_encryption_select: %d, ",
 890                p->psa_encryption_select);
 891         printk
 892             ("psa_encryption_key[]: %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
 893              p->psa_encryption_key[0], p->psa_encryption_key[1],
 894              p->psa_encryption_key[2], p->psa_encryption_key[3],
 895              p->psa_encryption_key[4], p->psa_encryption_key[5],
 896              p->psa_encryption_key[6], p->psa_encryption_key[7]);
 897         printk(KERN_DEBUG "psa_databus_width: %d\n", p->psa_databus_width);
 898         printk(KERN_DEBUG "psa_call_code/auto_squelch: 0x%02x, ",
 899                p->psa_call_code[0]);
 900         printk
 901             ("psa_call_code[]: %02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
 902              p->psa_call_code[0], p->psa_call_code[1], p->psa_call_code[2],
 903              p->psa_call_code[3], p->psa_call_code[4], p->psa_call_code[5],
 904              p->psa_call_code[6], p->psa_call_code[7]);
 905 #ifdef DEBUG_SHOW_UNUSED
 906         printk(KERN_DEBUG "psa_reserved[]: %02X:%02X\n",
 907                p->psa_reserved[0],
 908                p->psa_reserved[1]);
 909 #endif                          /* DEBUG_SHOW_UNUSED */
 910         printk(KERN_DEBUG "psa_conf_status: %d, ", p->psa_conf_status);
 911         printk("psa_crc: 0x%02x%02x, ", p->psa_crc[0], p->psa_crc[1]);
 912         printk("psa_crc_status: 0x%02x\n", p->psa_crc_status);
 913 }                               /* wv_psa_show */
 914 #endif                          /* DEBUG_PSA_SHOW */
 915
 916 #ifdef DEBUG_MMC_SHOW
 917 /*------------------------------------------------------------------*/
 918 /*
 919  * Print the formatted status of the Modem Management Controller.
 920  * This function needs to be completed.
 921  */
 922 static void wv_mmc_show(struct net_device * dev)
 923 {
 924         unsigned long ioaddr = dev->base_addr;
 925         net_local *lp = netdev_priv(dev);
 926         mmr_t m;
 927
 928         /* Basic check */
 929         if (hasr_read(ioaddr) & HASR_NO_CLK) {
 930                 printk(KERN_WARNING
 931                        "%s: wv_mmc_show: modem not connected\n",
 932                        dev->name);
 933                 return;
 934         }
 935
 936         /* Read the mmc */
 937         mmc_out(ioaddr, mmwoff(0, mmw_freeze), 1);
 938         mmc_read(ioaddr, 0, (u8 *) & m, sizeof(m));
 939         mmc_out(ioaddr, mmwoff(0, mmw_freeze), 0);
 940
 941         /* Don't forget to update statistics */
 942         lp->wstats.discard.nwid +=
 943             (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l;
 944
 945         printk(KERN_DEBUG "##### WaveLAN modem status registers: #####\n");
 946 #ifdef DEBUG_SHOW_UNUSED
 947         printk(KERN_DEBUG
 948                "mmc_unused0[]: %02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
 949                m.mmr_unused0[0], m.mmr_unused0[1], m.mmr_unused0[2],
 950                m.mmr_unused0[3], m.mmr_unused0[4], m.mmr_unused0[5],
 951                m.mmr_unused0[6], m.mmr_unused0[7]);
 952 #endif                          /* DEBUG_SHOW_UNUSED */
 953         printk(KERN_DEBUG "Encryption algorithm: %02X - Status: %02X\n",
 954                m.mmr_des_avail, m.mmr_des_status);
 955 #ifdef DEBUG_SHOW_UNUSED
 956         printk(KERN_DEBUG "mmc_unused1[]: %02X:%02X:%02X:%02X:%02X\n",
 957                m.mmr_unused1[0],
 958                m.mmr_unused1[1],
 959                m.mmr_unused1[2], m.mmr_unused1[3], m.mmr_unused1[4]);
 960 #endif                          /* DEBUG_SHOW_UNUSED */
 961         printk(KERN_DEBUG "dce_status: 0x%x [%s%s%s%s]\n",
 962                m.mmr_dce_status,
 963                (m.
 964                 mmr_dce_status & MMR_DCE_STATUS_RX_BUSY) ?
 965                "energy detected," : "",
 966                (m.
 967                 mmr_dce_status & MMR_DCE_STATUS_LOOPT_IND) ?
 968                "loop test indicated," : "",
 969                (m.
 970                 mmr_dce_status & MMR_DCE_STATUS_TX_BUSY) ?
 971                "transmitter on," : "",
 972                (m.
 973                 mmr_dce_status & MMR_DCE_STATUS_JBR_EXPIRED) ?
 974                "jabber timer expired," : "");
 975         printk(KERN_DEBUG "Dsp ID: %02X\n", m.mmr_dsp_id);
 976 #ifdef DEBUG_SHOW_UNUSED
 977         printk(KERN_DEBUG "mmc_unused2[]: %02X:%02X\n",
 978                m.mmr_unused2[0], m.mmr_unused2[1]);
 979 #endif                          /* DEBUG_SHOW_UNUSED */
 980         printk(KERN_DEBUG "# correct_nwid: %d, # wrong_nwid: %d\n",
 981                (m.mmr_correct_nwid_h << 8) | m.mmr_correct_nwid_l,
 982                (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l);
 983         printk(KERN_DEBUG "thr_pre_set: 0x%x [current signal %s]\n",
 984                m.mmr_thr_pre_set & MMR_THR_PRE_SET,
 985                (m.
 986                 mmr_thr_pre_set & MMR_THR_PRE_SET_CUR) ? "above" :
 987                "below");
 988         printk(KERN_DEBUG "signal_lvl: %d [%s], ",
 989                m.mmr_signal_lvl & MMR_SIGNAL_LVL,
 990                (m.
 991                 mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) ? "new msg" :
 992                "no new msg");
 993         printk("silence_lvl: %d [%s], ",
 994                m.mmr_silence_lvl & MMR_SILENCE_LVL,
 995                (m.
 996                 mmr_silence_lvl & MMR_SILENCE_LVL_VALID) ? "update done" :
 997                "no new update");
 998         printk("sgnl_qual: 0x%x [%s]\n", m.mmr_sgnl_qual & MMR_SGNL_QUAL,
 999                (m.
1000                 mmr_sgnl_qual & MMR_SGNL_QUAL_ANT) ? "Antenna 1" :
1001                "Antenna 0");
1002 #ifdef DEBUG_SHOW_UNUSED
1003         printk(KERN_DEBUG "netw_id_l: %x\n", m.mmr_netw_id_l);
1004 #endif                          /* DEBUG_SHOW_UNUSED */
1005 }                               /* wv_mmc_show */
1006 #endif                          /* DEBUG_MMC_SHOW */
1007
1008 #ifdef DEBUG_I82586_SHOW
1009 /*------------------------------------------------------------------*/
1010 /*
1011  * Print the last block of the i82586 memory.
1012  */
1013 static void wv_scb_show(unsigned long ioaddr)
1014 {
1015         scb_t scb;
1016
1017         obram_read(ioaddr, OFFSET_SCB, (unsigned char *) &scb,
1018                    sizeof(scb));
1019
1020         printk(KERN_DEBUG "##### WaveLAN system control block: #####\n");
1021
1022         printk(KERN_DEBUG "status: ");
1023         printk("stat 0x%x[%s%s%s%s] ",
1024                (scb.
1025                 scb_status & (SCB_ST_CX | SCB_ST_FR | SCB_ST_CNA |
1026                               SCB_ST_RNR)) >> 12,
1027                (scb.
1028                 scb_status & SCB_ST_CX) ? "command completion interrupt," :
1029                "", (scb.scb_status & SCB_ST_FR) ? "frame received," : "",
1030                (scb.
1031                 scb_status & SCB_ST_CNA) ? "command unit not active," : "",
1032                (scb.
1033                 scb_status & SCB_ST_RNR) ? "receiving unit not ready," :
1034                "");
1035         printk("cus 0x%x[%s%s%s] ", (scb.scb_status & SCB_ST_CUS) >> 8,
1036                ((scb.scb_status & SCB_ST_CUS) ==
1037                 SCB_ST_CUS_IDLE) ? "idle" : "",
1038                ((scb.scb_status & SCB_ST_CUS) ==
1039                 SCB_ST_CUS_SUSP) ? "suspended" : "",
1040                ((scb.scb_status & SCB_ST_CUS) ==
1041                 SCB_ST_CUS_ACTV) ? "active" : "");
1042         printk("rus 0x%x[%s%s%s%s]\n", (scb.scb_status & SCB_ST_RUS) >> 4,
1043                ((scb.scb_status & SCB_ST_RUS) ==
1044                 SCB_ST_RUS_IDLE) ? "idle" : "",
1045                ((scb.scb_status & SCB_ST_RUS) ==
1046                 SCB_ST_RUS_SUSP) ? "suspended" : "",
1047                ((scb.scb_status & SCB_ST_RUS) ==
1048                 SCB_ST_RUS_NRES) ? "no resources" : "",
1049                ((scb.scb_status & SCB_ST_RUS) ==
1050                 SCB_ST_RUS_RDY) ? "ready" : "");
1051
1052         printk(KERN_DEBUG "command: ");
1053         printk("ack 0x%x[%s%s%s%s] ",
1054                (scb.
1055                 scb_command & (SCB_CMD_ACK_CX | SCB_CMD_ACK_FR |
1056                                SCB_CMD_ACK_CNA | SCB_CMD_ACK_RNR)) >> 12,
1057                (scb.
1058                 scb_command & SCB_CMD_ACK_CX) ? "ack cmd completion," : "",
1059                (scb.
1060                 scb_command & SCB_CMD_ACK_FR) ? "ack frame received," : "",
1061                (scb.
1062                 scb_command & SCB_CMD_ACK_CNA) ? "ack CU not active," : "",
1063                (scb.
1064                 scb_command & SCB_CMD_ACK_RNR) ? "ack RU not ready," : "");
1065         printk("cuc 0x%x[%s%s%s%s%s] ",
1066                (scb.scb_command & SCB_CMD_CUC) >> 8,
1067                ((scb.scb_command & SCB_CMD_CUC) ==
1068                 SCB_CMD_CUC_NOP) ? "nop" : "",
1069                ((scb.scb_command & SCB_CMD_CUC) ==
1070                 SCB_CMD_CUC_GO) ? "start cbl_offset" : "",
1071                ((scb.scb_command & SCB_CMD_CUC) ==
1072                 SCB_CMD_CUC_RES) ? "resume execution" : "",
1073                ((scb.scb_command & SCB_CMD_CUC) ==
1074                 SCB_CMD_CUC_SUS) ? "suspend execution" : "",
1075                ((scb.scb_command & SCB_CMD_CUC) ==
1076                 SCB_CMD_CUC_ABT) ? "abort execution" : "");
1077         printk("ruc 0x%x[%s%s%s%s%s]\n",
1078                (scb.scb_command & SCB_CMD_RUC) >> 4,
1079                ((scb.scb_command & SCB_CMD_RUC) ==
1080                 SCB_CMD_RUC_NOP) ? "nop" : "",
1081                ((scb.scb_command & SCB_CMD_RUC) ==
1082                 SCB_CMD_RUC_GO) ? "start rfa_offset" : "",
1083                ((scb.scb_command & SCB_CMD_RUC) ==
1084                 SCB_CMD_RUC_RES) ? "resume reception" : "",
1085                ((scb.scb_command & SCB_CMD_RUC) ==
1086                 SCB_CMD_RUC_SUS) ? "suspend reception" : "",
1087                ((scb.scb_command & SCB_CMD_RUC) ==
1088                 SCB_CMD_RUC_ABT) ? "abort reception" : "");
1089
1090         printk(KERN_DEBUG "cbl_offset 0x%x ", scb.scb_cbl_offset);
1091         printk("rfa_offset 0x%x\n", scb.scb_rfa_offset);
1092
1093         printk(KERN_DEBUG "crcerrs %d ", scb.scb_crcerrs);
1094         printk("alnerrs %d ", scb.scb_alnerrs);
1095         printk("rscerrs %d ", scb.scb_rscerrs);
1096         printk("ovrnerrs %d\n", scb.scb_ovrnerrs);
1097 }
1098
1099 /*------------------------------------------------------------------*/
1100 /*
1101  * Print the formatted status of the i82586's receive unit.
1102  */
1103 static void wv_ru_show(struct net_device * dev)
1104 {
1105         printk(KERN_DEBUG
1106                "##### WaveLAN i82586 receiver unit status: #####\n");
1107         printk(KERN_DEBUG "ru:");
1108         /*
1109          * Not implemented yet
1110          */
1111         printk("\n");
1112 }                               /* wv_ru_show */
1113
1114 /*------------------------------------------------------------------*/
1115 /*
1116  * Display info about one control block of the i82586 memory.
1117  */
1118 static void wv_cu_show_one(struct net_device * dev, net_local * lp, int i, u16 p)
1119 {
1120         unsigned long ioaddr;
1121         ac_tx_t actx;
1122
1123         ioaddr = dev->base_addr;
1124
1125         printk("%d: 0x%x:", i, p);
1126
1127         obram_read(ioaddr, p, (unsigned char *) &actx, sizeof(actx));
1128         printk(" status=0x%x,", actx.tx_h.ac_status);
1129         printk(" command=0x%x,", actx.tx_h.ac_command);
1130
1131         /*
1132            {
1133            tbd_t      tbd;
1134
1135            obram_read(ioaddr, actx.tx_tbd_offset, (unsigned char *)&tbd, sizeof(tbd));
1136            printk(" tbd_status=0x%x,", tbd.tbd_status);
1137            }
1138          */
1139
1140         printk("|");
1141 }
1142
1143 /*------------------------------------------------------------------*/
1144 /*
1145  * Print status of the command unit of the i82586.
1146  */
1147 static void wv_cu_show(struct net_device * dev)
1148 {
1149         net_local *lp = netdev_priv(dev);
1150         unsigned int i;
1151         u16 p;
1152
1153         printk(KERN_DEBUG
1154                "##### WaveLAN i82586 command unit status: #####\n");
1155
1156         printk(KERN_DEBUG);
1157         for (i = 0, p = lp->tx_first_in_use; i < NTXBLOCKS; i++) {
1158                 wv_cu_show_one(dev, lp, i, p);
1159
1160                 p += TXBLOCKZ;
1161                 if (p >= OFFSET_CU + NTXBLOCKS * TXBLOCKZ)
1162                         p -= NTXBLOCKS * TXBLOCKZ;
1163         }
1164         printk("\n");
1165 }
1166 #endif                          /* DEBUG_I82586_SHOW */
1167
1168 #ifdef DEBUG_DEVICE_SHOW
1169 /*------------------------------------------------------------------*/
1170 /*
1171  * Print the formatted status of the WaveLAN PCMCIA device driver.
1172  */
1173 static void wv_dev_show(struct net_device * dev)
1174 {
1175         printk(KERN_DEBUG "dev:");
1176         printk(" state=%lX,", dev->state);
1177         printk(" trans_start=%ld,", dev->trans_start);
1178         printk(" flags=0x%x,", dev->flags);
1179         printk("\n");
1180 }                               /* wv_dev_show */
1181
1182 /*------------------------------------------------------------------*/
1183 /*
1184  * Print the formatted status of the WaveLAN PCMCIA device driver's
1185  * private information.
1186  */
1187 static void wv_local_show(struct net_device * dev)
1188 {
1189         net_local *lp;
1190
1191         lp = netdev_priv(dev);
1192
1193         printk(KERN_DEBUG "local:");
1194         printk(" tx_n_in_use=%d,", lp->tx_n_in_use);
1195         printk(" hacr=0x%x,", lp->hacr);
1196         printk(" rx_head=0x%x,", lp->rx_head);
1197         printk(" rx_last=0x%x,", lp->rx_last);
1198         printk(" tx_first_free=0x%x,", lp->tx_first_free);
1199         printk(" tx_first_in_use=0x%x,", lp->tx_first_in_use);
1200         printk("\n");
1201 }                               /* wv_local_show */
1202 #endif                          /* DEBUG_DEVICE_SHOW */
1203
1204 #if defined(DEBUG_RX_INFO) || defined(DEBUG_TX_INFO)
1205 /*------------------------------------------------------------------*/
1206 /*
1207  * Dump packet header (and content if necessary) on the screen
1208  */
1209 static inline void wv_packet_info(u8 * p,       /* Packet to dump */
1210                                   int length,   /* Length of the packet */
1211                                   char *msg1,   /* Name of the device */
1212                                   char *msg2)
1213 {                               /* Name of the function */
1214         int i;
1215         int maxi;
1216
1217         printk(KERN_DEBUG
1218                "%s: %s(): dest %pM, length %d\n",
1219                msg1, msg2, p, length);
1220         printk(KERN_DEBUG
1221                "%s: %s(): src %pM, type 0x%02X%02X\n",
1222                msg1, msg2, &p[6], p[12], p[13]);
1223
1224 #ifdef DEBUG_PACKET_DUMP
1225
1226         printk(KERN_DEBUG "data=\"");
1227
1228         if ((maxi = length) > DEBUG_PACKET_DUMP)
1229                 maxi = DEBUG_PACKET_DUMP;
1230         for (i = 14; i < maxi; i++)
1231                 if (p[i] >= ' ' && p[i] <= '~')
1232                         printk(" %c", p[i]);
1233                 else
1234                         printk("%02X", p[i]);
1235         if (maxi < length)
1236                 printk("..");
1237         printk("\"\n");
1238         printk(KERN_DEBUG "\n");
1239 #endif                          /* DEBUG_PACKET_DUMP */
1240 }
1241 #endif                          /* defined(DEBUG_RX_INFO) || defined(DEBUG_TX_INFO) */
1242
1243 /*------------------------------------------------------------------*/
1244 /*
1245  * This is the information which is displayed by the driver at startup.
1246  * There are lots of flags for configuring it to your liking.
1247  */
1248 static void wv_init_info(struct net_device * dev)
1249 {
1250         short ioaddr = dev->base_addr;
1251         net_local *lp = netdev_priv(dev);
1252         psa_t psa;
1253
1254         /* Read the parameter storage area */
1255         psa_read(ioaddr, lp->hacr, 0, (unsigned char *) &psa, sizeof(psa));
1256
1257 #ifdef DEBUG_PSA_SHOW
1258         wv_psa_show(&psa);
1259 #endif
1260 #ifdef DEBUG_MMC_SHOW
1261         wv_mmc_show(dev);
1262 #endif
1263 #ifdef DEBUG_I82586_SHOW
1264         wv_cu_show(dev);
1265 #endif
1266
1267 #ifdef DEBUG_BASIC_SHOW
1268         /* Now, let's go for the basic stuff. */
1269         printk(KERN_NOTICE "%s: WaveLAN at %#x, %pM, IRQ %d",
1270                dev->name, ioaddr, dev->dev_addr, dev->irq);
1271
1272         /* Print current network ID. */
1273         if (psa.psa_nwid_select)
1274                 printk(", nwid 0x%02X-%02X", psa.psa_nwid[0],
1275                        psa.psa_nwid[1]);
1276         else
1277                 printk(", nwid off");
1278
1279         /* If 2.00 card */
1280         if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) &
1281               (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) {
1282                 unsigned short freq;
1283
1284                 /* Ask the EEPROM to read the frequency from the first area. */
1285                 fee_read(ioaddr, 0x00, &freq, 1);
1286
1287                 /* Print frequency */
1288                 printk(", 2.00, %ld", (freq >> 6) + 2400L);
1289
1290                 /* Hack! */
1291                 if (freq & 0x20)
1292                         printk(".5");
1293         } else {
1294                 printk(", PC");
1295                 switch (psa.psa_comp_number) {
1296                 case PSA_COMP_PC_AT_915:
1297                 case PSA_COMP_PC_AT_2400:
1298                         printk("-AT");
1299                         break;
1300                 case PSA_COMP_PC_MC_915:
1301                 case PSA_COMP_PC_MC_2400:
1302                         printk("-MC");
1303                         break;
1304                 case PSA_COMP_PCMCIA_915:
1305                         printk("MCIA");
1306                         break;
1307                 default:
1308                         printk("?");
1309                 }
1310                 printk(", ");
1311                 switch (psa.psa_subband) {
1312                 case PSA_SUBBAND_915:
1313                         printk("915");
1314                         break;
1315                 case PSA_SUBBAND_2425:
1316                         printk("2425");
1317                         break;
1318                 case PSA_SUBBAND_2460:
1319                         printk("2460");
1320                         break;
1321                 case PSA_SUBBAND_2484:
1322                         printk("2484");
1323                         break;
1324                 case PSA_SUBBAND_2430_5:
1325                         printk("2430.5");
1326                         break;
1327                 default:
1328                         printk("?");
1329                 }
1330         }
1331
1332         printk(" MHz\n");
1333 #endif                          /* DEBUG_BASIC_SHOW */
1334
1335 #ifdef DEBUG_VERSION_SHOW
1336         /* Print version information */
1337         printk(KERN_NOTICE "%s", version);
1338 #endif
1339 }                               /* wv_init_info */
1340
1341 /********************* IOCTL, STATS & RECONFIG *********************/
1342 /*
1343  * We found here routines that are called by Linux on different
1344  * occasions after the configuration and not for transmitting data
1345  * These may be called when the user use ifconfig, /proc/net/dev
1346  * or wireless extensions
1347  */
1348
1349
1350 /*------------------------------------------------------------------*/
1351 /*
1352  * Set or clear the multicast filter for this adaptor.
1353  * num_addrs == -1      Promiscuous mode, receive all packets
1354  * num_addrs == 0       Normal mode, clear multicast list
1355  * num_addrs > 0        Multicast mode, receive normal and MC packets,
1356  *                      and do best-effort filtering.
1357  */
1358 static void wavelan_set_multicast_list(struct net_device * dev)
1359 {
1360         net_local *lp = netdev_priv(dev);
1361
1362 #ifdef DEBUG_IOCTL_TRACE
1363         printk(KERN_DEBUG "%s: ->wavelan_set_multicast_list()\n",
1364                dev->name);
1365 #endif
1366
1367 #ifdef DEBUG_IOCTL_INFO
1368         printk(KERN_DEBUG
1369                "%s: wavelan_set_multicast_list(): setting Rx mode %02X to %d addresses.\n",
1370                dev->name, dev->flags, dev->mc_count);
1371 #endif
1372
1373         /* Are we asking for promiscuous mode,
1374          * or all multicast addresses (we don't have that!)
1375          * or too many multicast addresses for the hardware filter? */
1376         if ((dev->flags & IFF_PROMISC) ||
1377             (dev->flags & IFF_ALLMULTI) ||
1378             (dev->mc_count > I82586_MAX_MULTICAST_ADDRESSES)) {
1379                 /*
1380                  * Enable promiscuous mode: receive all packets.
1381                  */
1382                 if (!lp->promiscuous) {
1383                         lp->promiscuous = 1;
1384                         lp->mc_count = 0;
1385
1386                         wv_82586_reconfig(dev);
1387                 }
1388         } else
1389                 /* Are there multicast addresses to send? */
1390         if (dev->mc_list != (struct dev_mc_list *) NULL) {
1391                 /*
1392                  * Disable promiscuous mode, but receive all packets
1393                  * in multicast list
1394                  */
1395 #ifdef MULTICAST_AVOID
1396                 if (lp->promiscuous || (dev->mc_count != lp->mc_count))
1397 #endif
1398                 {
1399                         lp->promiscuous = 0;
1400                         lp->mc_count = dev->mc_count;
1401
1402                         wv_82586_reconfig(dev);
1403                 }
1404         } else {
1405                 /*
1406                  * Switch to normal mode: disable promiscuous mode and
1407                  * clear the multicast list.
1408                  */
1409                 if (lp->promiscuous || lp->mc_count == 0) {
1410                         lp->promiscuous = 0;
1411                         lp->mc_count = 0;
1412
1413                         wv_82586_reconfig(dev);
1414                 }
1415         }
1416 #ifdef DEBUG_IOCTL_TRACE
1417         printk(KERN_DEBUG "%s: <-wavelan_set_multicast_list()\n",
1418                dev->name);
1419 #endif
1420 }
1421
1422 /*------------------------------------------------------------------*/
1423 /*
1424  * This function doesn't exist.
1425  * (Note : it was a nice way to test the reconfigure stuff...)
1426  */
1427 #ifdef SET_MAC_ADDRESS
1428 static int wavelan_set_mac_address(struct net_device * dev, void *addr)
1429 {
1430         struct sockaddr *mac = addr;
1431
1432         /* Copy the address. */
1433         memcpy(dev->dev_addr, mac->sa_data, WAVELAN_ADDR_SIZE);
1434
1435         /* Reconfigure the beast. */
1436         wv_82586_reconfig(dev);
1437
1438         return 0;
1439 }
1440 #endif                          /* SET_MAC_ADDRESS */
1441
1442
1443 /*------------------------------------------------------------------*/
1444 /*
1445  * Frequency setting (for hardware capable of it)
1446  * It's a bit complicated and you don't really want to look into it.
1447  * (called in wavelan_ioctl)
1448  */
1449 static int wv_set_frequency(unsigned long ioaddr,       /* I/O port of the card */
1450                                    iw_freq * frequency)
1451 {
1452         const int BAND_NUM = 10;        /* Number of bands */
1453         long freq = 0L;         /* offset to 2.4 GHz in .5 MHz */
1454 #ifdef DEBUG_IOCTL_INFO
1455         int i;
1456 #endif
1457
1458         /* Setting by frequency */
1459         /* Theoretically, you may set any frequency between
1460          * the two limits with a 0.5 MHz precision. In practice,
1461          * I don't want you to have trouble with local regulations.
1462          */
1463         if ((frequency->e == 1) &&
1464             (frequency->m >= (int) 2.412e8)
1465             && (frequency->m <= (int) 2.487e8)) {
1466                 freq = ((frequency->m / 10000) - 24000L) / 5;
1467         }
1468
1469         /* Setting by channel (same as wfreqsel) */
1470         /* Warning: each channel is 22 MHz wide, so some of the channels
1471          * will interfere. */
1472         if ((frequency->e == 0) && (frequency->m < BAND_NUM)) {
1473                 /* Get frequency offset. */
1474                 freq = channel_bands[frequency->m] >> 1;
1475         }
1476
1477         /* Verify that the frequency is allowed. */
1478         if (freq != 0L) {
1479                 u16 table[10];  /* Authorized frequency table */
1480
1481                 /* Read the frequency table. */
1482                 fee_read(ioaddr, 0x71, table, 10);
1483
1484 #ifdef DEBUG_IOCTL_INFO
1485                 printk(KERN_DEBUG "Frequency table: ");
1486                 for (i = 0; i < 10; i++) {
1487                         printk(" %04X", table[i]);
1488                 }
1489                 printk("\n");
1490 #endif
1491
1492                 /* Look in the table to see whether the frequency is allowed. */
1493                 if (!(table[9 - ((freq - 24) / 16)] &
1494                       (1 << ((freq - 24) % 16)))) return -EINVAL;       /* not allowed */
1495         } else
1496                 return -EINVAL;
1497
1498         /* if we get a usable frequency */
1499         if (freq != 0L) {
1500                 unsigned short area[16];
1501                 unsigned short dac[2];
1502                 unsigned short area_verify[16];
1503                 unsigned short dac_verify[2];
1504                 /* Corresponding gain (in the power adjust value table)
1505                  * See AT&T WaveLAN Data Manual, REF 407-024689/E, page 3-8
1506                  * and WCIN062D.DOC, page 6.2.9. */
1507                 unsigned short power_limit[] = { 40, 80, 120, 160, 0 };
1508                 int power_band = 0;     /* Selected band */
1509                 unsigned short power_adjust;    /* Correct value */
1510
1511                 /* Search for the gain. */
1512                 power_band = 0;
1513                 while ((freq > power_limit[power_band]) &&
1514                        (power_limit[++power_band] != 0));
1515
1516                 /* Read the first area. */
1517                 fee_read(ioaddr, 0x00, area, 16);
1518
1519                 /* Read the DAC. */
1520                 fee_read(ioaddr, 0x60, dac, 2);
1521
1522                 /* Read the new power adjust value. */
1523                 fee_read(ioaddr, 0x6B - (power_band >> 1), &power_adjust,
1524                          1);
1525                 if (power_band & 0x1)
1526                         power_adjust >>= 8;
1527                 else
1528                         power_adjust &= 0xFF;
1529
1530 #ifdef DEBUG_IOCTL_INFO
1531                 printk(KERN_DEBUG "WaveLAN EEPROM Area 1: ");
1532                 for (i = 0; i < 16; i++) {
1533                         printk(" %04X", area[i]);
1534                 }
1535                 printk("\n");
1536
1537                 printk(KERN_DEBUG "WaveLAN EEPROM DAC: %04X %04X\n",
1538                        dac[0], dac[1]);
1539 #endif
1540
1541                 /* Frequency offset (for info only) */
1542                 area[0] = ((freq << 5) & 0xFFE0) | (area[0] & 0x1F);
1543
1544                 /* Receiver Principle main divider coefficient */
1545                 area[3] = (freq >> 1) + 2400L - 352L;
1546                 area[2] = ((freq & 0x1) << 4) | (area[2] & 0xFFEF);
1547
1548                 /* Transmitter Main divider coefficient */
1549                 area[13] = (freq >> 1) + 2400L;
1550                 area[12] = ((freq & 0x1) << 4) | (area[2] & 0xFFEF);
1551
1552                 /* Other parts of the area are flags, bit streams or unused. */
1553
1554                 /* Set the value in the DAC. */
1555                 dac[1] = ((power_adjust >> 1) & 0x7F) | (dac[1] & 0xFF80);
1556                 dac[0] = ((power_adjust & 0x1) << 4) | (dac[0] & 0xFFEF);
1557
1558                 /* Write the first area. */
1559                 fee_write(ioaddr, 0x00, area, 16);
1560
1561                 /* Write the DAC. */
1562                 fee_write(ioaddr, 0x60, dac, 2);
1563
1564                 /* We now should verify here that the writing of the EEPROM went OK. */
1565
1566                 /* Reread the first area. */
1567                 fee_read(ioaddr, 0x00, area_verify, 16);
1568
1569                 /* Reread the DAC. */
1570                 fee_read(ioaddr, 0x60, dac_verify, 2);
1571
1572                 /* Compare. */
1573                 if (memcmp(area, area_verify, 16 * 2) ||
1574                     memcmp(dac, dac_verify, 2 * 2)) {
1575 #ifdef DEBUG_IOCTL_ERROR
1576                         printk(KERN_INFO
1577                                "WaveLAN: wv_set_frequency: unable to write new frequency to EEPROM(?).\n");
1578 #endif
1579                         return -EOPNOTSUPP;
1580                 }
1581
1582                 /* We must download the frequency parameters to the
1583                  * synthesizers (from the EEPROM - area 1)
1584                  * Note: as the EEPROM is automatically decremented, we set the end
1585                  * if the area... */
1586                 mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), 0x0F);
1587                 mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl),
1588                         MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD);
1589
1590                 /* Wait until the download is finished. */
1591                 fee_wait(ioaddr, 100, 100);
1592
1593                 /* We must now download the power adjust value (gain) to
1594                  * the synthesizers (from the EEPROM - area 7 - DAC). */
1595                 mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), 0x61);
1596                 mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl),
1597                         MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD);
1598
1599                 /* Wait for the download to finish. */
1600                 fee_wait(ioaddr, 100, 100);
1601
1602 #ifdef DEBUG_IOCTL_INFO
1603                 /* Verification of what we have done */
1604
1605                 printk(KERN_DEBUG "WaveLAN EEPROM Area 1: ");
1606                 for (i = 0; i < 16; i++) {
1607                         printk(" %04X", area_verify[i]);
1608                 }
1609                 printk("\n");
1610
1611                 printk(KERN_DEBUG "WaveLAN EEPROM DAC:  %04X %04X\n",
1612                        dac_verify[0], dac_verify[1]);
1613 #endif
1614
1615                 return 0;
1616         } else
1617                 return -EINVAL; /* Bah, never get there... */
1618 }
1619
1620 /*------------------------------------------------------------------*/
1621 /*
1622  * Give the list of available frequencies.
1623  */
1624 static int wv_frequency_list(unsigned long ioaddr,      /* I/O port of the card */
1625                                     iw_freq * list,     /* List of frequencies to fill */
1626                                     int max)
1627 {                               /* Maximum number of frequencies */
1628         u16 table[10];  /* Authorized frequency table */
1629         long freq = 0L;         /* offset to 2.4 GHz in .5 MHz + 12 MHz */
1630         int i;                  /* index in the table */
1631         int c = 0;              /* Channel number */
1632
1633         /* Read the frequency table. */
1634         fee_read(ioaddr, 0x71 /* frequency table */ , table, 10);
1635
1636         /* Check all frequencies. */
1637         i = 0;
1638         for (freq = 0; freq < 150; freq++)
1639                 /* Look in the table if the frequency is allowed */
1640                 if (table[9 - (freq / 16)] & (1 << (freq % 16))) {
1641                         /* Compute approximate channel number */
1642                         while ((c < ARRAY_SIZE(channel_bands)) &&
1643                                 (((channel_bands[c] >> 1) - 24) < freq))
1644                                 c++;
1645                         list[i].i = c;  /* Set the list index */
1646
1647                         /* put in the list */
1648                         list[i].m = (((freq + 24) * 5) + 24000L) * 10000;
1649                         list[i++].e = 1;
1650
1651                         /* Check number. */
1652                         if (i >= max)
1653                                 return (i);
1654                 }
1655
1656         return (i);
1657 }
1658
1659 #ifdef IW_WIRELESS_SPY
1660 /*------------------------------------------------------------------*/
1661 /*
1662  * Gather wireless spy statistics:  for each packet, compare the source
1663  * address with our list, and if they match, get the statistics.
1664  * Sorry, but this function really needs the wireless extensions.
1665  */
1666 static inline void wl_spy_gather(struct net_device * dev,
1667                                  u8 *   mac,    /* MAC address */
1668                                  u8 *   stats)  /* Statistics to gather */
1669 {
1670         struct iw_quality wstats;
1671
1672         wstats.qual = stats[2] & MMR_SGNL_QUAL;
1673         wstats.level = stats[0] & MMR_SIGNAL_LVL;
1674         wstats.noise = stats[1] & MMR_SILENCE_LVL;
1675         wstats.updated = 0x7;
1676
1677         /* Update spy records */
1678         wireless_spy_update(dev, mac, &wstats);
1679 }
1680 #endif /* IW_WIRELESS_SPY */
1681
1682 #ifdef HISTOGRAM
1683 /*------------------------------------------------------------------*/
1684 /*
1685  * This function calculates a histogram of the signal level.
1686  * As the noise is quite constant, it's like doing it on the SNR.
1687  * We have defined a set of interval (lp->his_range), and each time
1688  * the level goes in that interval, we increment the count (lp->his_sum).
1689  * With this histogram you may detect if one WaveLAN is really weak,
1690  * or you may also calculate the mean and standard deviation of the level.
1691  */
1692 static inline void wl_his_gather(struct net_device * dev, u8 * stats)
1693 {                               /* Statistics to gather */
1694         net_local *lp = netdev_priv(dev);
1695         u8 level = stats[0] & MMR_SIGNAL_LVL;
1696         int i;
1697
1698         /* Find the correct interval. */
1699         i = 0;
1700         while ((i < (lp->his_number - 1))
1701                && (level >= lp->his_range[i++]));
1702
1703         /* Increment interval counter. */
1704         (lp->his_sum[i])++;
1705 }
1706 #endif /* HISTOGRAM */
1707
1708 /*------------------------------------------------------------------*/
1709 /*
1710  * Wireless Handler : get protocol name
1711  */
1712 static int wavelan_get_name(struct net_device *dev,
1713                             struct iw_request_info *info,
1714                             union iwreq_data *wrqu,
1715                             char *extra)
1716 {
1717         strcpy(wrqu->name, "WaveLAN");
1718         return 0;
1719 }
1720
1721 /*------------------------------------------------------------------*/
1722 /*
1723  * Wireless Handler : set NWID
1724  */
1725 static int wavelan_set_nwid(struct net_device *dev,
1726                             struct iw_request_info *info,
1727                             union iwreq_data *wrqu,
1728                             char *extra)
1729 {
1730         unsigned long ioaddr = dev->base_addr;
1731         net_local *lp = netdev_priv(dev);       /* lp is not unused */
1732         psa_t psa;
1733         mm_t m;
1734         unsigned long flags;
1735         int ret = 0;
1736
1737         /* Disable interrupts and save flags. */
1738         spin_lock_irqsave(&lp->spinlock, flags);
1739
1740         /* Set NWID in WaveLAN. */
1741         if (!wrqu->nwid.disabled) {
1742                 /* Set NWID in psa */
1743                 psa.psa_nwid[0] = (wrqu->nwid.value & 0xFF00) >> 8;
1744                 psa.psa_nwid[1] = wrqu->nwid.value & 0xFF;
1745                 psa.psa_nwid_select = 0x01;
1746                 psa_write(ioaddr, lp->hacr,
1747                           (char *) psa.psa_nwid - (char *) &psa,
1748                           (unsigned char *) psa.psa_nwid, 3);
1749
1750                 /* Set NWID in mmc. */
1751                 m.w.mmw_netw_id_l = psa.psa_nwid[1];
1752                 m.w.mmw_netw_id_h = psa.psa_nwid[0];
1753                 mmc_write(ioaddr,
1754                           (char *) &m.w.mmw_netw_id_l -
1755                           (char *) &m,
1756                           (unsigned char *) &m.w.mmw_netw_id_l, 2);
1757                 mmc_out(ioaddr, mmwoff(0, mmw_loopt_sel), 0x00);
1758         } else {
1759                 /* Disable NWID in the psa. */
1760                 psa.psa_nwid_select = 0x00;
1761                 psa_write(ioaddr, lp->hacr,
1762                           (char *) &psa.psa_nwid_select -
1763                           (char *) &psa,
1764                           (unsigned char *) &psa.psa_nwid_select,
1765                           1);
1766
1767                 /* Disable NWID in the mmc (no filtering). */
1768                 mmc_out(ioaddr, mmwoff(0, mmw_loopt_sel),
1769                         MMW_LOOPT_SEL_DIS_NWID);
1770         }
1771         /* update the Wavelan checksum */
1772         update_psa_checksum(dev, ioaddr, lp->hacr);
1773
1774         /* Enable interrupts and restore flags. */
1775         spin_unlock_irqrestore(&lp->spinlock, flags);
1776
1777         return ret;
1778 }
1779
1780 /*------------------------------------------------------------------*/
1781 /*
1782  * Wireless Handler : get NWID
1783  */
1784 static int wavelan_get_nwid(struct net_device *dev,
1785                             struct iw_request_info *info,
1786                             union iwreq_data *wrqu,
1787                             char *extra)
1788 {
1789         unsigned long ioaddr = dev->base_addr;
1790         net_local *lp = netdev_priv(dev);       /* lp is not unused */
1791         psa_t psa;
1792         unsigned long flags;
1793         int ret = 0;
1794
1795         /* Disable interrupts and save flags. */
1796         spin_lock_irqsave(&lp->spinlock, flags);
1797
1798         /* Read the NWID. */
1799         psa_read(ioaddr, lp->hacr,
1800                  (char *) psa.psa_nwid - (char *) &psa,
1801                  (unsigned char *) psa.psa_nwid, 3);
1802         wrqu->nwid.value = (psa.psa_nwid[0] << 8) + psa.psa_nwid[1];
1803         wrqu->nwid.disabled = !(psa.psa_nwid_select);
1804         wrqu->nwid.fixed = 1;   /* Superfluous */
1805
1806         /* Enable interrupts and restore flags. */
1807         spin_unlock_irqrestore(&lp->spinlock, flags);
1808
1809         return ret;
1810 }
1811
1812 /*------------------------------------------------------------------*/
1813 /*
1814  * Wireless Handler : set frequency
1815  */
1816 static int wavelan_set_freq(struct net_device *dev,
1817                             struct iw_request_info *info,
1818                             union iwreq_data *wrqu,
1819                             char *extra)
1820 {
1821         unsigned long ioaddr = dev->base_addr;
1822         net_local *lp = netdev_priv(dev);       /* lp is not unused */
1823         unsigned long flags;
1824         int ret;
1825
1826         /* Disable interrupts and save flags. */
1827         spin_lock_irqsave(&lp->spinlock, flags);
1828
1829         /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable). */
1830         if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) &
1831               (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY)))
1832                 ret = wv_set_frequency(ioaddr, &(wrqu->freq));
1833         else
1834                 ret = -EOPNOTSUPP;
1835
1836         /* Enable interrupts and restore flags. */
1837         spin_unlock_irqrestore(&lp->spinlock, flags);
1838
1839         return ret;
1840 }
1841
1842 /*------------------------------------------------------------------*/
1843 /*
1844  * Wireless Handler : get frequency
1845  */
1846 static int wavelan_get_freq(struct net_device *dev,
1847                             struct iw_request_info *info,
1848                             union iwreq_data *wrqu,
1849                             char *extra)
1850 {
1851         unsigned long ioaddr = dev->base_addr;
1852         net_local *lp = netdev_priv(dev);       /* lp is not unused */
1853         psa_t psa;
1854         unsigned long flags;
1855         int ret = 0;
1856
1857         /* Disable interrupts and save flags. */
1858         spin_lock_irqsave(&lp->spinlock, flags);
1859
1860         /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable).
1861          * Does it work for everybody, especially old cards? */
1862         if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) &
1863               (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) {
1864                 unsigned short freq;
1865
1866                 /* Ask the EEPROM to read the frequency from the first area. */
1867                 fee_read(ioaddr, 0x00, &freq, 1);
1868                 wrqu->freq.m = ((freq >> 5) * 5 + 24000L) * 10000;
1869                 wrqu->freq.e = 1;
1870         } else {
1871                 psa_read(ioaddr, lp->hacr,
1872                          (char *) &psa.psa_subband - (char *) &psa,
1873                          (unsigned char *) &psa.psa_subband, 1);
1874
1875                 if (psa.psa_subband <= 4) {
1876                         wrqu->freq.m = fixed_bands[psa.psa_subband];
1877                         wrqu->freq.e = (psa.psa_subband != 0);
1878                 } else
1879                         ret = -EOPNOTSUPP;
1880         }
1881
1882         /* Enable interrupts and restore flags. */
1883         spin_unlock_irqrestore(&lp->spinlock, flags);
1884
1885         return ret;
1886 }
1887
1888 /*------------------------------------------------------------------*/
1889 /*
1890  * Wireless Handler : set level threshold
1891  */
1892 static int wavelan_set_sens(struct net_device *dev,
1893                             struct iw_request_info *info,
1894                             union iwreq_data *wrqu,
1895                             char *extra)
1896 {
1897         unsigned long ioaddr = dev->base_addr;
1898         net_local *lp = netdev_priv(dev);       /* lp is not unused */
1899         psa_t psa;
1900         unsigned long flags;
1901         int ret = 0;
1902
1903         /* Disable interrupts and save flags. */
1904         spin_lock_irqsave(&lp->spinlock, flags);
1905
1906         /* Set the level threshold. */
1907         /* We should complain loudly if wrqu->sens.fixed = 0, because we
1908          * can't set auto mode... */
1909         psa.psa_thr_pre_set = wrqu->sens.value & 0x3F;
1910         psa_write(ioaddr, lp->hacr,
1911                   (char *) &psa.psa_thr_pre_set - (char *) &psa,
1912                   (unsigned char *) &psa.psa_thr_pre_set, 1);
1913         /* update the Wavelan checksum */
1914         update_psa_checksum(dev, ioaddr, lp->hacr);
1915         mmc_out(ioaddr, mmwoff(0, mmw_thr_pre_set),
1916                 psa.psa_thr_pre_set);
1917
1918         /* Enable interrupts and restore flags. */
1919         spin_unlock_irqrestore(&lp->spinlock, flags);
1920
1921         return ret;
1922 }
1923
1924 /*------------------------------------------------------------------*/
1925 /*
1926  * Wireless Handler : get level threshold
1927  */
1928 static int wavelan_get_sens(struct net_device *dev,
1929                             struct iw_request_info *info,
1930                             union iwreq_data *wrqu,
1931                             char *extra)
1932 {
1933         unsigned long ioaddr = dev->base_addr;
1934         net_local *lp = netdev_priv(dev);       /* lp is not unused */
1935         psa_t psa;
1936         unsigned long flags;
1937         int ret = 0;
1938
1939         /* Disable interrupts and save flags. */
1940         spin_lock_irqsave(&lp->spinlock, flags);
1941
1942         /* Read the level threshold. */
1943         psa_read(ioaddr, lp->hacr,
1944                  (char *) &psa.psa_thr_pre_set - (char *) &psa,
1945                  (unsigned char *) &psa.psa_thr_pre_set, 1);
1946         wrqu->sens.value = psa.psa_thr_pre_set & 0x3F;
1947         wrqu->sens.fixed = 1;
1948
1949         /* Enable interrupts and restore flags. */
1950         spin_unlock_irqrestore(&lp->spinlock, flags);
1951
1952         return ret;
1953 }
1954
1955 /*------------------------------------------------------------------*/
1956 /*
1957  * Wireless Handler : set encryption key
1958  */
1959 static int wavelan_set_encode(struct net_device *dev,
1960                               struct iw_request_info *info,
1961                               union iwreq_data *wrqu,
1962                               char *extra)
1963 {
1964         unsigned long ioaddr = dev->base_addr;
1965         net_local *lp = netdev_priv(dev);       /* lp is not unused */
1966         unsigned long flags;
1967         psa_t psa;
1968         int ret = 0;
1969
1970         /* Disable interrupts and save flags. */
1971         spin_lock_irqsave(&lp->spinlock, flags);
1972
1973         /* Check if capable of encryption */
1974         if (!mmc_encr(ioaddr)) {
1975                 ret = -EOPNOTSUPP;
1976         }
1977
1978         /* Check the size of the key */
1979         if((wrqu->encoding.length != 8) && (wrqu->encoding.length != 0)) {
1980                 ret = -EINVAL;
1981         }
1982
1983         if(!ret) {
1984                 /* Basic checking... */
1985                 if (wrqu->encoding.length == 8) {
1986                         /* Copy the key in the driver */
1987                         memcpy(psa.psa_encryption_key, extra,
1988                                wrqu->encoding.length);
1989                         psa.psa_encryption_select = 1;
1990
1991                         psa_write(ioaddr, lp->hacr,
1992                                   (char *) &psa.psa_encryption_select -
1993                                   (char *) &psa,
1994                                   (unsigned char *) &psa.
1995                                   psa_encryption_select, 8 + 1);
1996
1997                         mmc_out(ioaddr, mmwoff(0, mmw_encr_enable),
1998                                 MMW_ENCR_ENABLE_EN | MMW_ENCR_ENABLE_MODE);
1999                         mmc_write(ioaddr, mmwoff(0, mmw_encr_key),
2000                                   (unsigned char *) &psa.
2001                                   psa_encryption_key, 8);
2002                 }
2003
2004                 /* disable encryption */
2005                 if (wrqu->encoding.flags & IW_ENCODE_DISABLED) {
2006                         psa.psa_encryption_select = 0;
2007                         psa_write(ioaddr, lp->hacr,
2008                                   (char *) &psa.psa_encryption_select -
2009                                   (char *) &psa,
2010                                   (unsigned char *) &psa.
2011                                   psa_encryption_select, 1);
2012
2013                         mmc_out(ioaddr, mmwoff(0, mmw_encr_enable), 0);
2014                 }
2015                 /* update the Wavelan checksum */
2016                 update_psa_checksum(dev, ioaddr, lp->hacr);
2017         }
2018
2019         /* Enable interrupts and restore flags. */
2020         spin_unlock_irqrestore(&lp->spinlock, flags);
2021
2022         return ret;
2023 }
2024
2025 /*------------------------------------------------------------------*/
2026 /*
2027  * Wireless Handler : get encryption key
2028  */
2029 static int wavelan_get_encode(struct net_device *dev,
2030                               struct iw_request_info *info,
2031                               union iwreq_data *wrqu,
2032                               char *extra)
2033 {
2034         unsigned long ioaddr = dev->base_addr;
2035         net_local *lp = netdev_priv(dev);       /* lp is not unused */
2036         psa_t psa;
2037         unsigned long flags;
2038         int ret = 0;
2039
2040         /* Disable interrupts and save flags. */
2041         spin_lock_irqsave(&lp->spinlock, flags);
2042
2043         /* Check if encryption is available */
2044         if (!mmc_encr(ioaddr)) {
2045                 ret = -EOPNOTSUPP;
2046         } else {
2047                 /* Read the encryption key */
2048                 psa_read(ioaddr, lp->hacr,
2049                          (char *) &psa.psa_encryption_select -
2050                          (char *) &psa,
2051                          (unsigned char *) &psa.
2052                          psa_encryption_select, 1 + 8);
2053
2054                 /* encryption is enabled ? */
2055                 if (psa.psa_encryption_select)
2056                         wrqu->encoding.flags = IW_ENCODE_ENABLED;
2057                 else
2058                         wrqu->encoding.flags = IW_ENCODE_DISABLED;
2059                 wrqu->encoding.flags |= mmc_encr(ioaddr);
2060
2061                 /* Copy the key to the user buffer */
2062                 wrqu->encoding.length = 8;
2063                 memcpy(extra, psa.psa_encryption_key, wrqu->encoding.length);
2064         }
2065
2066         /* Enable interrupts and restore flags. */
2067         spin_unlock_irqrestore(&lp->spinlock, flags);
2068
2069         return ret;
2070 }
2071
2072 /*------------------------------------------------------------------*/
2073 /*
2074  * Wireless Handler : get range info
2075  */
2076 static int wavelan_get_range(struct net_device *dev,
2077                              struct iw_request_info *info,
2078                              union iwreq_data *wrqu,
2079                              char *extra)
2080 {
2081         unsigned long ioaddr = dev->base_addr;
2082         net_local *lp = netdev_priv(dev);       /* lp is not unused */
2083         struct iw_range *range = (struct iw_range *) extra;
2084         unsigned long flags;
2085         int ret = 0;
2086
2087         /* Set the length (very important for backward compatibility) */
2088         wrqu->data.length = sizeof(struct iw_range);
2089
2090         /* Set all the info we don't care or don't know about to zero */
2091         memset(range, 0, sizeof(struct iw_range));
2092
2093         /* Set the Wireless Extension versions */
2094         range->we_version_compiled = WIRELESS_EXT;
2095         range->we_version_source = 9;
2096
2097         /* Set information in the range struct.  */
2098         range->throughput = 1.6 * 1000 * 1000;  /* don't argue on this ! */
2099         range->min_nwid = 0x0000;
2100         range->max_nwid = 0xFFFF;
2101
2102         range->sensitivity = 0x3F;
2103         range->max_qual.qual = MMR_SGNL_QUAL;
2104         range->max_qual.level = MMR_SIGNAL_LVL;
2105         range->max_qual.noise = MMR_SILENCE_LVL;
2106         range->avg_qual.qual = MMR_SGNL_QUAL; /* Always max */
2107         /* Need to get better values for those two */
2108         range->avg_qual.level = 30;
2109         range->avg_qual.noise = 8;
2110
2111         range->num_bitrates = 1;
2112         range->bitrate[0] = 2000000;    /* 2 Mb/s */
2113
2114         /* Event capability (kernel + driver) */
2115         range->event_capa[0] = (IW_EVENT_CAPA_MASK(0x8B02) |
2116                                 IW_EVENT_CAPA_MASK(0x8B04));
2117         range->event_capa[1] = IW_EVENT_CAPA_K_1;
2118
2119         /* Disable interrupts and save flags. */
2120         spin_lock_irqsave(&lp->spinlock, flags);
2121
2122         /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable). */
2123         if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) &
2124               (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) {
2125                 range->num_channels = 10;
2126                 range->num_frequency = wv_frequency_list(ioaddr, range->freq,
2127                                                         IW_MAX_FREQUENCIES);
2128         } else
2129                 range->num_channels = range->num_frequency = 0;
2130
2131         /* Encryption supported ? */
2132         if (mmc_encr(ioaddr)) {
2133                 range->encoding_size[0] = 8;    /* DES = 64 bits key */
2134                 range->num_encoding_sizes = 1;
2135                 range->max_encoding_tokens = 1; /* Only one key possible */
2136         } else {
2137                 range->num_encoding_sizes = 0;
2138                 range->max_encoding_tokens = 0;
2139         }
2140
2141         /* Enable interrupts and restore flags. */
2142         spin_unlock_irqrestore(&lp->spinlock, flags);
2143
2144         return ret;
2145 }
2146
2147 /*------------------------------------------------------------------*/
2148 /*
2149  * Wireless Private Handler : set quality threshold
2150  */
2151 static int wavelan_set_qthr(struct net_device *dev,
2152                             struct iw_request_info *info,
2153                             union iwreq_data *wrqu,
2154                             char *extra)
2155 {
2156         unsigned long ioaddr = dev->base_addr;
2157         net_local *lp = netdev_priv(dev);       /* lp is not unused */
2158         psa_t psa;
2159         unsigned long flags;
2160
2161         /* Disable interrupts and save flags. */
2162         spin_lock_irqsave(&lp->spinlock, flags);
2163
2164         psa.psa_quality_thr = *(extra) & 0x0F;
2165         psa_write(ioaddr, lp->hacr,
2166                   (char *) &psa.psa_quality_thr - (char *) &psa,
2167                   (unsigned char *) &psa.psa_quality_thr, 1);
2168         /* update the Wavelan checksum */
2169         update_psa_checksum(dev, ioaddr, lp->hacr);
2170         mmc_out(ioaddr, mmwoff(0, mmw_quality_thr),
2171                 psa.psa_quality_thr);
2172
2173         /* Enable interrupts and restore flags. */
2174         spin_unlock_irqrestore(&lp->spinlock, flags);
2175
2176         return 0;
2177 }
2178
2179 /*------------------------------------------------------------------*/
2180 /*
2181  * Wireless Private Handler : get quality threshold
2182  */
2183 static int wavelan_get_qthr(struct net_device *dev,
2184                             struct iw_request_info *info,
2185                             union iwreq_data *wrqu,
2186                             char *extra)
2187 {
2188         unsigned long ioaddr = dev->base_addr;
2189         net_local *lp = netdev_priv(dev);       /* lp is not unused */
2190         psa_t psa;
2191         unsigned long flags;
2192
2193         /* Disable interrupts and save flags. */
2194         spin_lock_irqsave(&lp->spinlock, flags);
2195
2196         psa_read(ioaddr, lp->hacr,
2197                  (char *) &psa.psa_quality_thr - (char *) &psa,
2198                  (unsigned char *) &psa.psa_quality_thr, 1);
2199         *(extra) = psa.psa_quality_thr & 0x0F;
2200
2201         /* Enable interrupts and restore flags. */
2202         spin_unlock_irqrestore(&lp->spinlock, flags);
2203
2204         return 0;
2205 }
2206
2207 #ifdef HISTOGRAM
2208 /*------------------------------------------------------------------*/
2209 /*
2210  * Wireless Private Handler : set histogram
2211  */
2212 static int wavelan_set_histo(struct net_device *dev,
2213                              struct iw_request_info *info,
2214                              union iwreq_data *wrqu,
2215                              char *extra)
2216 {
2217         net_local *lp = netdev_priv(dev);       /* lp is not unused */
2218
2219         /* Check the number of intervals. */
2220         if (wrqu->data.length > 16) {
2221                 return(-E2BIG);
2222         }
2223
2224         /* Disable histo while we copy the addresses.
2225          * As we don't disable interrupts, we need to do this */
2226         lp->his_number = 0;
2227
2228         /* Are there ranges to copy? */
2229         if (wrqu->data.length > 0) {
2230                 /* Copy interval ranges to the driver */
2231                 memcpy(lp->his_range, extra, wrqu->data.length);
2232
2233                 {
2234                   int i;
2235                   printk(KERN_DEBUG "Histo :");
2236                   for(i = 0; i < wrqu->data.length; i++)
2237                     printk(" %d", lp->his_range[i]);
2238                   printk("\n");
2239                 }
2240
2241                 /* Reset result structure. */
2242                 memset(lp->his_sum, 0x00, sizeof(long) * 16);
2243         }
2244
2245         /* Now we can set the number of ranges */
2246         lp->his_number = wrqu->data.length;
2247
2248         return(0);
2249 }
2250
2251 /*------------------------------------------------------------------*/
2252 /*
2253  * Wireless Private Handler : get histogram
2254  */
2255 static int wavelan_get_histo(struct net_device *dev,
2256                              struct iw_request_info *info,
2257                              union iwreq_data *wrqu,
2258                              char *extra)
2259 {
2260         net_local *lp = netdev_priv(dev);       /* lp is not unused */
2261
2262         /* Set the number of intervals. */
2263         wrqu->data.length = lp->his_number;
2264
2265         /* Give back the distribution statistics */
2266         if(lp->his_number > 0)
2267                 memcpy(extra, lp->his_sum, sizeof(long) * lp->his_number);
2268
2269         return(0);
2270 }
2271 #endif                  /* HISTOGRAM */
2272
2273 /*------------------------------------------------------------------*/
2274 /*
2275  * Structures to export the Wireless Handlers
2276  */
2277
2278 static const iw_handler         wavelan_handler[] =
2279 {
2280         NULL,                           /* SIOCSIWNAME */
2281         wavelan_get_name,               /* SIOCGIWNAME */
2282         wavelan_set_nwid,               /* SIOCSIWNWID */
2283         wavelan_get_nwid,               /* SIOCGIWNWID */
2284         wavelan_set_freq,               /* SIOCSIWFREQ */
2285         wavelan_get_freq,               /* SIOCGIWFREQ */
2286         NULL,                           /* SIOCSIWMODE */
2287         NULL,                           /* SIOCGIWMODE */
2288         wavelan_set_sens,               /* SIOCSIWSENS */
2289         wavelan_get_sens,               /* SIOCGIWSENS */
2290         NULL,                           /* SIOCSIWRANGE */
2291         wavelan_get_range,              /* SIOCGIWRANGE */
2292         NULL,                           /* SIOCSIWPRIV */
2293         NULL,                           /* SIOCGIWPRIV */
2294         NULL,                           /* SIOCSIWSTATS */
2295         NULL,                           /* SIOCGIWSTATS */
2296         iw_handler_set_spy,             /* SIOCSIWSPY */
2297         iw_handler_get_spy,             /* SIOCGIWSPY */
2298         iw_handler_set_thrspy,          /* SIOCSIWTHRSPY */
2299         iw_handler_get_thrspy,          /* SIOCGIWTHRSPY */
2300         NULL,                           /* SIOCSIWAP */
2301         NULL,                           /* SIOCGIWAP */
2302         NULL,                           /* -- hole -- */
2303         NULL,                           /* SIOCGIWAPLIST */
2304         NULL,                           /* -- hole -- */
2305         NULL,                           /* -- hole -- */
2306         NULL,                           /* SIOCSIWESSID */
2307         NULL,                           /* SIOCGIWESSID */
2308         NULL,                           /* SIOCSIWNICKN */
2309         NULL,                           /* SIOCGIWNICKN */
2310         NULL,                           /* -- hole -- */
2311         NULL,                           /* -- hole -- */
2312         NULL,                           /* SIOCSIWRATE */
2313         NULL,                           /* SIOCGIWRATE */
2314         NULL,                           /* SIOCSIWRTS */
2315         NULL,                           /* SIOCGIWRTS */
2316         NULL,                           /* SIOCSIWFRAG */
2317         NULL,                           /* SIOCGIWFRAG */
2318         NULL,                           /* SIOCSIWTXPOW */
2319         NULL,                           /* SIOCGIWTXPOW */
2320         NULL,                           /* SIOCSIWRETRY */
2321         NULL,                           /* SIOCGIWRETRY */
2322         /* Bummer ! Why those are only at the end ??? */
2323         wavelan_set_encode,             /* SIOCSIWENCODE */
2324         wavelan_get_encode,             /* SIOCGIWENCODE */
2325 };
2326
2327 static const iw_handler         wavelan_private_handler[] =
2328 {
2329         wavelan_set_qthr,               /* SIOCIWFIRSTPRIV */
2330         wavelan_get_qthr,               /* SIOCIWFIRSTPRIV + 1 */
2331 #ifdef HISTOGRAM
2332         wavelan_set_histo,              /* SIOCIWFIRSTPRIV + 2 */
2333         wavelan_get_histo,              /* SIOCIWFIRSTPRIV + 3 */
2334 #endif  /* HISTOGRAM */
2335 };
2336
2337 static const struct iw_priv_args wavelan_private_args[] = {
2338 /*{ cmd,         set_args,                            get_args, name } */
2339   { SIOCSIPQTHR, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0, "setqualthr" },
2340   { SIOCGIPQTHR, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, "getqualthr" },
2341   { SIOCSIPHISTO, IW_PRIV_TYPE_BYTE | 16,                    0, "sethisto" },
2342   { SIOCGIPHISTO, 0,                     IW_PRIV_TYPE_INT | 16, "gethisto" },
2343 };
2344
2345 static const struct iw_handler_def      wavelan_handler_def =
2346 {
2347         .num_standard   = ARRAY_SIZE(wavelan_handler),
2348         .num_private    = ARRAY_SIZE(wavelan_private_handler),
2349         .num_private_args = ARRAY_SIZE(wavelan_private_args),
2350         .standard       = wavelan_handler,
2351         .private        = wavelan_private_handler,
2352         .private_args   = wavelan_private_args,
2353         .get_wireless_stats = wavelan_get_wireless_stats,
2354 };
2355
2356 /*------------------------------------------------------------------*/
2357 /*
2358  * Get wireless statistics.
2359  * Called by /proc/net/wireless
2360  */
2361 static iw_stats *wavelan_get_wireless_stats(struct net_device * dev)
2362 {
2363         unsigned long ioaddr = dev->base_addr;
2364         net_local *lp = netdev_priv(dev);
2365         mmr_t m;
2366         iw_stats *wstats;
2367         unsigned long flags;
2368
2369 #ifdef DEBUG_IOCTL_TRACE
2370         printk(KERN_DEBUG "%s: ->wavelan_get_wireless_stats()\n",
2371                dev->name);
2372 #endif
2373
2374         /* Check */
2375         if (lp == (net_local *) NULL)
2376                 return (iw_stats *) NULL;
2377
2378         /* Disable interrupts and save flags. */
2379         spin_lock_irqsave(&lp->spinlock, flags);
2380
2381         wstats = &lp->wstats;
2382
2383         /* Get data from the mmc. */
2384         mmc_out(ioaddr, mmwoff(0, mmw_freeze), 1);
2385
2386         mmc_read(ioaddr, mmroff(0, mmr_dce_status), &m.mmr_dce_status, 1);
2387         mmc_read(ioaddr, mmroff(0, mmr_wrong_nwid_l), &m.mmr_wrong_nwid_l,
2388                  2);
2389         mmc_read(ioaddr, mmroff(0, mmr_thr_pre_set), &m.mmr_thr_pre_set,
2390                  4);
2391
2392         mmc_out(ioaddr, mmwoff(0, mmw_freeze), 0);
2393
2394         /* Copy data to wireless stuff. */
2395         wstats->status = m.mmr_dce_status & MMR_DCE_STATUS;
2396         wstats->qual.qual = m.mmr_sgnl_qual & MMR_SGNL_QUAL;
2397         wstats->qual.level = m.mmr_signal_lvl & MMR_SIGNAL_LVL;
2398         wstats->qual.noise = m.mmr_silence_lvl & MMR_SILENCE_LVL;
2399         wstats->qual.updated = (((m. mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) >> 7)
2400                         | ((m.mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) >> 6)
2401                         | ((m.mmr_silence_lvl & MMR_SILENCE_LVL_VALID) >> 5));
2402         wstats->discard.nwid += (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l;
2403         wstats->discard.code = 0L;
2404         wstats->discard.misc = 0L;
2405
2406         /* Enable interrupts and restore flags. */
2407         spin_unlock_irqrestore(&lp->spinlock, flags);
2408
2409 #ifdef DEBUG_IOCTL_TRACE
2410         printk(KERN_DEBUG "%s: <-wavelan_get_wireless_stats()\n",
2411                dev->name);
2412 #endif
2413         return &lp->wstats;
2414 }
2415
2416 /************************* PACKET RECEPTION *************************/
2417 /*
2418  * This part deals with receiving the packets.
2419  * The interrupt handler gets an interrupt when a packet has been
2420  * successfully received and calls this part.
2421  */
2422
2423 /*------------------------------------------------------------------*/
2424 /*
2425  * This routine does the actual copying of data (including the Ethernet
2426  * header structure) from the WaveLAN card to an sk_buff chain that
2427  * will be passed up to the network interface layer. NOTE: we
2428  * currently don't handle trailer protocols (neither does the rest of
2429  * the network interface), so if that is needed, it will (at least in
2430  * part) be added here.  The contents of the receive ring buffer are
2431  * copied to a message chain that is then passed to the kernel.
2432  *
2433  * Note: if any errors occur, the packet is "dropped on the floor".
2434  * (called by wv_packet_rcv())
2435  */
2436 static void
2437 wv_packet_read(struct net_device * dev, u16 buf_off, int sksize)
2438 {
2439         net_local *lp = netdev_priv(dev);
2440         unsigned long ioaddr = dev->base_addr;
2441         struct sk_buff *skb;
2442
2443 #ifdef DEBUG_RX_TRACE
2444         printk(KERN_DEBUG "%s: ->wv_packet_read(0x%X, %d)\n",
2445                dev->name, buf_off, sksize);
2446 #endif
2447
2448         /* Allocate buffer for the data */
2449         if ((skb = dev_alloc_skb(sksize)) == (struct sk_buff *) NULL) {
2450 #ifdef DEBUG_RX_ERROR
2451                 printk(KERN_INFO
2452                        "%s: wv_packet_read(): could not alloc_skb(%d, GFP_ATOMIC).\n",
2453                        dev->name, sksize);
2454 #endif
2455                 dev->stats.rx_dropped++;
2456                 return;
2457         }
2458
2459         /* Copy the packet to the buffer. */
2460         obram_read(ioaddr, buf_off, skb_put(skb, sksize), sksize);
2461         skb->protocol = eth_type_trans(skb, dev);
2462
2463 #ifdef DEBUG_RX_INFO
2464         wv_packet_info(skb_mac_header(skb), sksize, dev->name,
2465                        "wv_packet_read");
2466 #endif                          /* DEBUG_RX_INFO */
2467
2468         /* Statistics-gathering and associated stuff.
2469          * It seem a bit messy with all the define, but it's really
2470          * simple... */
2471         if (
2472 #ifdef IW_WIRELESS_SPY          /* defined in iw_handler.h */
2473                    (lp->spy_data.spy_number > 0) ||
2474 #endif /* IW_WIRELESS_SPY */
2475 #ifdef HISTOGRAM
2476                    (lp->his_number > 0) ||
2477 #endif /* HISTOGRAM */
2478                    0) {
2479                 u8 stats[3];    /* signal level, noise level, signal quality */
2480
2481                 /* Read signal level, silence level and signal quality bytes */
2482                 /* Note: in the PCMCIA hardware, these are part of the frame.
2483                  * It seems that for the ISA hardware, it's nowhere to be
2484                  * found in the frame, so I'm obliged to do this (it has a
2485                  * side effect on /proc/net/wireless).
2486                  * Any ideas?
2487                  */
2488                 mmc_out(ioaddr, mmwoff(0, mmw_freeze), 1);
2489                 mmc_read(ioaddr, mmroff(0, mmr_signal_lvl), stats, 3);
2490                 mmc_out(ioaddr, mmwoff(0, mmw_freeze), 0);
2491
2492 #ifdef DEBUG_RX_INFO
2493                 printk(KERN_DEBUG
2494                        "%s: wv_packet_read(): Signal level %d/63, Silence level %d/63, signal quality %d/16\n",
2495                        dev->name, stats[0] & 0x3F, stats[1] & 0x3F,
2496                        stats[2] & 0x0F);
2497 #endif
2498
2499                 /* Spying stuff */
2500 #ifdef IW_WIRELESS_SPY
2501                 wl_spy_gather(dev, skb_mac_header(skb) + WAVELAN_ADDR_SIZE,
2502                               stats);
2503 #endif /* IW_WIRELESS_SPY */
2504 #ifdef HISTOGRAM
2505                 wl_his_gather(dev, stats);
2506 #endif /* HISTOGRAM */
2507         }
2508
2509         /*
2510          * Hand the packet to the network module.
2511          */
2512         netif_rx(skb);
2513
2514         /* Keep statistics up to date */
2515         dev->stats.rx_packets++;
2516         dev->stats.rx_bytes += sksize;
2517
2518 #ifdef DEBUG_RX_TRACE
2519         printk(KERN_DEBUG "%s: <-wv_packet_read()\n", dev->name);
2520 #endif
2521 }
2522
2523 /*------------------------------------------------------------------*/
2524 /*
2525  * Transfer as many packets as we can
2526  * from the device RAM.
2527  * (called in wavelan_interrupt()).
2528  * Note : the spinlock is already grabbed for us.
2529  */
2530 static void wv_receive(struct net_device * dev)
2531 {
2532         unsigned long ioaddr = dev->base_addr;
2533         net_local *lp = netdev_priv(dev);
2534         fd_t fd;
2535         rbd_t rbd;
2536         int nreaped = 0;
2537
2538 #ifdef DEBUG_RX_TRACE
2539         printk(KERN_DEBUG "%s: ->wv_receive()\n", dev->name);
2540 #endif
2541
2542         /* Loop on each received packet. */
2543         for (;;) {
2544                 obram_read(ioaddr, lp->rx_head, (unsigned char *) &fd,
2545                            sizeof(fd));
2546
2547                 /* Note about the status :
2548                  * It start up to be 0 (the value we set). Then, when the RU
2549                  * grab the buffer to prepare for reception, it sets the
2550                  * FD_STATUS_B flag. When the RU has finished receiving the
2551                  * frame, it clears FD_STATUS_B, set FD_STATUS_C to indicate
2552                  * completion and set the other flags to indicate the eventual
2553                  * errors. FD_STATUS_OK indicates that the reception was OK.
2554                  */
2555
2556                 /* If the current frame is not complete, we have reached the end. */
2557                 if ((fd.fd_status & FD_STATUS_C) != FD_STATUS_C)
2558                         break;  /* This is how we exit the loop. */
2559
2560                 nreaped++;
2561
2562                 /* Check whether frame was correctly received. */
2563                 if ((fd.fd_status & FD_STATUS_OK) == FD_STATUS_OK) {
2564                         /* Does the frame contain a pointer to the data?  Let's check. */
2565                         if (fd.fd_rbd_offset != I82586NULL) {
2566                                 /* Read the receive buffer descriptor */
2567                                 obram_read(ioaddr, fd.fd_rbd_offset,
2568                                            (unsigned char *) &rbd,
2569                                            sizeof(rbd));
2570
2571 #ifdef DEBUG_RX_ERROR
2572                                 if ((rbd.rbd_status & RBD_STATUS_EOF) !=
2573                                     RBD_STATUS_EOF) printk(KERN_INFO
2574                                                            "%s: wv_receive(): missing EOF flag.\n",
2575                                                            dev->name);
2576
2577                                 if ((rbd.rbd_status & RBD_STATUS_F) !=
2578                                     RBD_STATUS_F) printk(KERN_INFO
2579                                                          "%s: wv_receive(): missing F flag.\n",
2580                                                          dev->name);
2581 #endif                          /* DEBUG_RX_ERROR */
2582
2583                                 /* Read the packet and transmit to Linux */
2584                                 wv_packet_read(dev, rbd.rbd_bufl,
2585                                                rbd.
2586                                                rbd_status &
2587                                                RBD_STATUS_ACNT);
2588                         }
2589 #ifdef DEBUG_RX_ERROR
2590                         else    /* if frame has no data */
2591                                 printk(KERN_INFO
2592                                        "%s: wv_receive(): frame has no data.\n",
2593                                        dev->name);
2594 #endif
2595                 } else {        /* If reception was no successful */
2596
2597                         dev->stats.rx_errors++;
2598
2599 #ifdef DEBUG_RX_INFO
2600                         printk(KERN_DEBUG
2601                                "%s: wv_receive(): frame not received successfully (%X).\n",
2602                                dev->name, fd.fd_status);
2603 #endif
2604
2605 #ifdef DEBUG_RX_ERROR
2606                         if ((fd.fd_status & FD_STATUS_S6) != 0)
2607                                 printk(KERN_INFO
2608                                        "%s: wv_receive(): no EOF flag.\n",
2609                                        dev->name);
2610 #endif
2611
2612                         if ((fd.fd_status & FD_STATUS_S7) != 0) {
2613                                 dev->stats.rx_length_errors++;
2614 #ifdef DEBUG_RX_FAIL
2615                                 printk(KERN_DEBUG
2616                                        "%s: wv_receive(): frame too short.\n",
2617                                        dev->name);
2618 #endif
2619                         }
2620
2621                         if ((fd.fd_status & FD_STATUS_S8) != 0) {
2622                                 dev->stats.rx_over_errors++;
2623 #ifdef DEBUG_RX_FAIL
2624                                 printk(KERN_DEBUG
2625                                        "%s: wv_receive(): rx DMA overrun.\n",
2626                                        dev->name);
2627 #endif
2628                         }
2629
2630                         if ((fd.fd_status & FD_STATUS_S9) != 0) {
2631                                 dev->stats.rx_fifo_errors++;
2632 #ifdef DEBUG_RX_FAIL
2633                                 printk(KERN_DEBUG
2634                                        "%s: wv_receive(): ran out of resources.\n",
2635                                        dev->name);
2636 #endif
2637                         }
2638
2639                         if ((fd.fd_status & FD_STATUS_S10) != 0) {
2640                                 dev->stats.rx_frame_errors++;
2641 #ifdef DEBUG_RX_FAIL
2642                                 printk(KERN_DEBUG
2643                                        "%s: wv_receive(): alignment error.\n",
2644                                        dev->name);
2645 #endif
2646                         }
2647
2648                         if ((fd.fd_status & FD_STATUS_S11) != 0) {
2649                                 dev->stats.rx_crc_errors++;
2650 #ifdef DEBUG_RX_FAIL
2651                                 printk(KERN_DEBUG
2652                                        "%s: wv_receive(): CRC error.\n",
2653                                        dev->name);
2654 #endif
2655                         }
2656                 }
2657
2658                 fd.fd_status = 0;
2659                 obram_write(ioaddr, fdoff(lp->rx_head, fd_status),
2660                             (unsigned char *) &fd.fd_status,
2661                             sizeof(fd.fd_status));
2662
2663                 fd.fd_command = FD_COMMAND_EL;
2664                 obram_write(ioaddr, fdoff(lp->rx_head, fd_command),
2665                             (unsigned char *) &fd.fd_command,
2666                             sizeof(fd.fd_command));
2667
2668                 fd.fd_command = 0;
2669                 obram_write(ioaddr, fdoff(lp->rx_last, fd_command),
2670                             (unsigned char *) &fd.fd_command,
2671                             sizeof(fd.fd_command));
2672
2673                 lp->rx_last = lp->rx_head;
2674                 lp->rx_head = fd.fd_link_offset;
2675         }                       /* for(;;) -> loop on all frames */
2676
2677 #ifdef DEBUG_RX_INFO
2678         if (nreaped > 1)
2679                 printk(KERN_DEBUG "%s: wv_receive(): reaped %d\n",
2680                        dev->name, nreaped);
2681 #endif
2682 #ifdef DEBUG_RX_TRACE
2683         printk(KERN_DEBUG "%s: <-wv_receive()\n", dev->name);
2684 #endif
2685 }
2686
2687 /*********************** PACKET TRANSMISSION ***********************/
2688 /*
2689  * This part deals with sending packets through the WaveLAN.
2690  *
2691  */
2692
2693 /*------------------------------------------------------------------*/
2694 /*
2695  * This routine fills in the appropriate registers and memory
2696  * locations on the WaveLAN card and starts the card off on
2697  * the transmit.
2698  *
2699  * The principle:
2700  * Each block contains a transmit command, a NOP command,
2701  * a transmit block descriptor and a buffer.
2702  * The CU read the transmit block which point to the tbd,
2703  * read the tbd and the content of the buffer.
2704  * When it has finish with it, it goes to the next command
2705  * which in our case is the NOP. The NOP points on itself,
2706  * so the CU stop here.
2707  * When we add the next block, we modify the previous nop
2708  * to make it point on the new tx command.
2709  * Simple, isn't it ?
2710  *
2711  * (called in wavelan_packet_xmit())
2712  */
2713 static int wv_packet_write(struct net_device * dev, void *buf, short length)
2714 {
2715         net_local *lp = netdev_priv(dev);
2716         unsigned long ioaddr = dev->base_addr;
2717         unsigned short txblock;
2718         unsigned short txpred;
2719         unsigned short tx_addr;
2720         unsigned short nop_addr;
2721         unsigned short tbd_addr;
2722         unsigned short buf_addr;
2723         ac_tx_t tx;
2724         ac_nop_t nop;
2725         tbd_t tbd;
2726         int clen = length;
2727         unsigned long flags;
2728
2729 #ifdef DEBUG_TX_TRACE
2730         printk(KERN_DEBUG "%s: ->wv_packet_write(%d)\n", dev->name,
2731                length);
2732 #endif
2733
2734         spin_lock_irqsave(&lp->spinlock, flags);
2735
2736         /* Check nothing bad has happened */
2737         if (lp->tx_n_in_use == (NTXBLOCKS - 1)) {
2738 #ifdef DEBUG_TX_ERROR
2739                 printk(KERN_INFO "%s: wv_packet_write(): Tx queue full.\n",
2740                        dev->name);
2741 #endif
2742                 spin_unlock_irqrestore(&lp->spinlock, flags);
2743                 return 1;
2744         }
2745
2746         /* Calculate addresses of next block and previous block. */
2747         txblock = lp->tx_first_free;
2748         txpred = txblock - TXBLOCKZ;
2749         if (txpred < OFFSET_CU)
2750                 txpred += NTXBLOCKS * TXBLOCKZ;
2751         lp->tx_first_free += TXBLOCKZ;
2752         if (lp->tx_first_free >= OFFSET_CU + NTXBLOCKS * TXBLOCKZ)
2753                 lp->tx_first_free -= NTXBLOCKS * TXBLOCKZ;
2754
2755         lp->tx_n_in_use++;
2756
2757         /* Calculate addresses of the different parts of the block. */
2758         tx_addr = txblock;
2759         nop_addr = tx_addr + sizeof(tx);
2760         tbd_addr = nop_addr + sizeof(nop);
2761         buf_addr = tbd_addr + sizeof(tbd);
2762
2763         /*
2764          * Transmit command
2765          */
2766         tx.tx_h.ac_status = 0;
2767         obram_write(ioaddr, toff(ac_tx_t, tx_addr, tx_h.ac_status),
2768                     (unsigned char *) &tx.tx_h.ac_status,
2769                     sizeof(tx.tx_h.ac_status));
2770
2771         /*
2772          * NOP command
2773          */
2774         nop.nop_h.ac_status = 0;
2775         obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_status),
2776                     (unsigned char *) &nop.nop_h.ac_status,
2777                     sizeof(nop.nop_h.ac_status));
2778         nop.nop_h.ac_link = nop_addr;
2779         obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_link),
2780                     (unsigned char *) &nop.nop_h.ac_link,
2781                     sizeof(nop.nop_h.ac_link));
2782
2783         /*
2784          * Transmit buffer descriptor
2785          */
2786         tbd.tbd_status = TBD_STATUS_EOF | (TBD_STATUS_ACNT & clen);
2787         tbd.tbd_next_bd_offset = I82586NULL;
2788         tbd.tbd_bufl = buf_addr;
2789         tbd.tbd_bufh = 0;
2790         obram_write(ioaddr, tbd_addr, (unsigned char *) &tbd, sizeof(tbd));
2791
2792         /*
2793          * Data
2794          */
2795         obram_write(ioaddr, buf_addr, buf, length);
2796
2797         /*
2798          * Overwrite the predecessor NOP link
2799          * so that it points to this txblock.
2800          */
2801         nop_addr = txpred + sizeof(tx);
2802         nop.nop_h.ac_status = 0;
2803         obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_status),
2804                     (unsigned char *) &nop.nop_h.ac_status,
2805                     sizeof(nop.nop_h.ac_status));
2806         nop.nop_h.ac_link = txblock;
2807         obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_link),
2808                     (unsigned char *) &nop.nop_h.ac_link,
2809                     sizeof(nop.nop_h.ac_link));
2810
2811         /* Make sure the watchdog will keep quiet for a while */
2812         dev->trans_start = jiffies;
2813
2814         /* Keep stats up to date. */
2815         dev->stats.tx_bytes += length;
2816
2817         if (lp->tx_first_in_use == I82586NULL)
2818                 lp->tx_first_in_use = txblock;
2819
2820         if (lp->tx_n_in_use < NTXBLOCKS - 1)
2821                 netif_wake_queue(dev);
2822
2823         spin_unlock_irqrestore(&lp->spinlock, flags);
2824
2825 #ifdef DEBUG_TX_INFO
2826         wv_packet_info((u8 *) buf, length, dev->name,
2827                        "wv_packet_write");
2828 #endif                          /* DEBUG_TX_INFO */
2829
2830 #ifdef DEBUG_TX_TRACE
2831         printk(KERN_DEBUG "%s: <-wv_packet_write()\n", dev->name);
2832 #endif
2833
2834         return 0;
2835 }
2836
2837 /*------------------------------------------------------------------*/
2838 /*
2839  * This routine is called when we want to send a packet (NET3 callback)
2840  * In this routine, we check if the harware is ready to accept
2841  * the packet.  We also prevent reentrance.  Then we call the function
2842  * to send the packet.
2843  */
2844 static int wavelan_packet_xmit(struct sk_buff *skb, struct net_device * dev)
2845 {
2846         net_local *lp = netdev_priv(dev);
2847         unsigned long flags;
2848         char data[ETH_ZLEN];
2849
2850 #ifdef DEBUG_TX_TRACE
2851         printk(KERN_DEBUG "%s: ->wavelan_packet_xmit(0x%X)\n", dev->name,
2852                (unsigned) skb);
2853 #endif
2854
2855         /*
2856          * Block a timer-based transmit from overlapping.
2857          * In other words, prevent reentering this routine.
2858          */
2859         netif_stop_queue(dev);
2860
2861         /* If somebody has asked to reconfigure the controller,
2862          * we can do it now.
2863          */
2864         if (lp->reconfig_82586) {
2865                 spin_lock_irqsave(&lp->spinlock, flags);
2866                 wv_82586_config(dev);
2867                 spin_unlock_irqrestore(&lp->spinlock, flags);
2868                 /* Check that we can continue */
2869                 if (lp->tx_n_in_use == (NTXBLOCKS - 1))
2870                         return 1;
2871         }
2872
2873         /* Do we need some padding? */
2874         /* Note : on wireless the propagation time is in the order of 1us,
2875          * and we don't have the Ethernet specific requirement of beeing
2876          * able to detect collisions, therefore in theory we don't really
2877          * need to pad. Jean II */
2878         if (skb->len < ETH_ZLEN) {
2879                 memset(data, 0, ETH_ZLEN);
2880                 skb_copy_from_linear_data(skb, data, skb->len);
2881                 /* Write packet on the card */
2882                 if(wv_packet_write(dev, data, ETH_ZLEN))
2883                         return 1;       /* We failed */
2884         }
2885         else if(wv_packet_write(dev, skb->data, skb->len))
2886                 return 1;       /* We failed */
2887
2888
2889         dev_kfree_skb(skb);
2890
2891 #ifdef DEBUG_TX_TRACE
2892         printk(KERN_DEBUG "%s: <-wavelan_packet_xmit()\n", dev->name);
2893 #endif
2894         return 0;
2895 }
2896
2897 /*********************** HARDWARE CONFIGURATION ***********************/
2898 /*
2899  * This part does the real job of starting and configuring the hardware.
2900  */
2901
2902 /*--------------------------------------------------------------------*/
2903 /*
2904  * Routine to initialize the Modem Management Controller.
2905  * (called by wv_hw_reset())
2906  */
2907 static int wv_mmc_init(struct net_device * dev)
2908 {
2909         unsigned long ioaddr = dev->base_addr;
2910         net_local *lp = netdev_priv(dev);
2911         psa_t psa;
2912         mmw_t m;
2913         int configured;
2914
2915 #ifdef DEBUG_CONFIG_TRACE
2916         printk(KERN_DEBUG "%s: ->wv_mmc_init()\n", dev->name);
2917 #endif
2918
2919         /* Read the parameter storage area. */
2920         psa_read(ioaddr, lp->hacr, 0, (unsigned char *) &psa, sizeof(psa));
2921
2922 #ifdef USE_PSA_CONFIG
2923         configured = psa.psa_conf_status & 1;
2924 #else
2925         configured = 0;
2926 #endif
2927
2928         /* Is the PSA is not configured */
2929         if (!configured) {
2930                 /* User will be able to configure NWID later (with iwconfig). */
2931                 psa.psa_nwid[0] = 0;
2932                 psa.psa_nwid[1] = 0;
2933
2934                 /* no NWID checking since NWID is not set */
2935                 psa.psa_nwid_select = 0;
2936
2937                 /* Disable encryption */
2938                 psa.psa_encryption_select = 0;
2939
2940                 /* Set to standard values:
2941                  * 0x04 for AT,
2942                  * 0x01 for MCA,
2943                  * 0x04 for PCMCIA and 2.00 card (AT&T 407-024689/E document)
2944                  */
2945                 if (psa.psa_comp_number & 1)
2946                         psa.psa_thr_pre_set = 0x01;
2947                 else
2948                         psa.psa_thr_pre_set = 0x04;
2949                 psa.psa_quality_thr = 0x03;
2950
2951                 /* It is configured */
2952                 psa.psa_conf_status |= 1;
2953
2954 #ifdef USE_PSA_CONFIG
2955                 /* Write the psa. */
2956                 psa_write(ioaddr, lp->hacr,
2957                           (char *) psa.psa_nwid - (char *) &psa,
2958                           (unsigned char *) psa.psa_nwid, 4);
2959                 psa_write(ioaddr, lp->hacr,
2960                           (char *) &psa.psa_thr_pre_set - (char *) &psa,
2961                           (unsigned char *) &psa.psa_thr_pre_set, 1);
2962                 psa_write(ioaddr, lp->hacr,
2963                           (char *) &psa.psa_quality_thr - (char *) &psa,
2964                           (unsigned char *) &psa.psa_quality_thr, 1);
2965                 psa_write(ioaddr, lp->hacr,
2966                           (char *) &psa.psa_conf_status - (char *) &psa,
2967                           (unsigned char *) &psa.psa_conf_status, 1);
2968                 /* update the Wavelan checksum */
2969                 update_psa_checksum(dev, ioaddr, lp->hacr);
2970 #endif
2971         }
2972
2973         /* Zero the mmc structure. */
2974         memset(&m, 0x00, sizeof(m));
2975
2976         /* Copy PSA info to the mmc. */
2977         m.mmw_netw_id_l = psa.psa_nwid[1];
2978         m.mmw_netw_id_h = psa.psa_nwid[0];
2979
2980         if (psa.psa_nwid_select & 1)
2981                 m.mmw_loopt_sel = 0x00;
2982         else
2983                 m.mmw_loopt_sel = MMW_LOOPT_SEL_DIS_NWID;
2984
2985         memcpy(&m.mmw_encr_key, &psa.psa_encryption_key,
2986                sizeof(m.mmw_encr_key));
2987
2988         if (psa.psa_encryption_select)
2989                 m.mmw_encr_enable =
2990                     MMW_ENCR_ENABLE_EN | MMW_ENCR_ENABLE_MODE;
2991         else
2992                 m.mmw_encr_enable = 0;
2993
2994         m.mmw_thr_pre_set = psa.psa_thr_pre_set & 0x3F;
2995         m.mmw_quality_thr = psa.psa_quality_thr & 0x0F;
2996
2997         /*
2998          * Set default modem control parameters.
2999          * See NCR document 407-0024326 Rev. A.
3000          */
3001         m.mmw_jabber_enable = 0x01;
3002         m.mmw_freeze = 0;
3003         m.mmw_anten_sel = MMW_ANTEN_SEL_ALG_EN;
3004         m.mmw_ifs = 0x20;
3005         m.mmw_mod_delay = 0x04;
3006         m.mmw_jam_time = 0x38;
3007
3008         m.mmw_des_io_invert = 0;
3009         m.mmw_decay_prm = 0;
3010         m.mmw_decay_updat_prm = 0;
3011
3012         /* Write all info to MMC. */
3013         mmc_write(ioaddr, 0, (u8 *) & m, sizeof(m));
3014
3015         /* The following code starts the modem of the 2.00 frequency
3016          * selectable cards at power on.  It's not strictly needed for the
3017          * following boots.
3018          * The original patch was by Joe Finney for the PCMCIA driver, but
3019          * I've cleaned it up a bit and added documentation.
3020          * Thanks to Loeke Brederveld from Lucent for the info.
3021          */
3022
3023         /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable)
3024          * Does it work for everybody, especially old cards? */
3025         /* Note: WFREQSEL verifies that it is able to read a sensible
3026          * frequency from EEPROM (address 0x00) and that MMR_FEE_STATUS_ID
3027          * is 0xA (Xilinx version) or 0xB (Ariadne version).
3028          * My test is more crude but does work. */
3029         if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) &
3030               (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) {
3031                 /* We must download the frequency parameters to the
3032                  * synthesizers (from the EEPROM - area 1)
3033                  * Note: as the EEPROM is automatically decremented, we set the end
3034                  * if the area... */
3035                 m.mmw_fee_addr = 0x0F;
3036                 m.mmw_fee_ctrl = MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD;
3037                 mmc_write(ioaddr, (char *) &m.mmw_fee_ctrl - (char *) &m,
3038                           (unsigned char *) &m.mmw_fee_ctrl, 2);
3039
3040                 /* Wait until the download is finished. */
3041                 fee_wait(ioaddr, 100, 100);
3042
3043 #ifdef DEBUG_CONFIG_INFO
3044                 /* The frequency was in the last word downloaded. */
3045                 mmc_read(ioaddr, (char *) &m.mmw_fee_data_l - (char *) &m,
3046                          (unsigned char *) &m.mmw_fee_data_l, 2);
3047
3048                 /* Print some info for the user. */
3049                 printk(KERN_DEBUG
3050                        "%s: WaveLAN 2.00 recognised (frequency select).  Current frequency = %ld\n",
3051                        dev->name,
3052                        ((m.
3053                          mmw_fee_data_h << 4) | (m.mmw_fee_data_l >> 4)) *
3054                        5 / 2 + 24000L);
3055 #endif
3056
3057                 /* We must now download the power adjust value (gain) to
3058                  * the synthesizers (from the EEPROM - area 7 - DAC). */
3059                 m.mmw_fee_addr = 0x61;
3060                 m.mmw_fee_ctrl = MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD;
3061                 mmc_write(ioaddr, (char *) &m.mmw_fee_ctrl - (char *) &m,
3062                           (unsigned char *) &m.mmw_fee_ctrl, 2);
3063
3064                 /* Wait until the download is finished. */
3065         }
3066         /* if 2.00 card */
3067 #ifdef DEBUG_CONFIG_TRACE
3068         printk(KERN_DEBUG "%s: <-wv_mmc_init()\n", dev->name);
3069 #endif
3070         return 0;
3071 }
3072
3073 /*------------------------------------------------------------------*/
3074 /*
3075  * Construct the fd and rbd structures.
3076  * Start the receive unit.
3077  * (called by wv_hw_reset())
3078  */
3079 static int wv_ru_start(struct net_device * dev)
3080 {
3081         net_local *lp = netdev_priv(dev);
3082         unsigned long ioaddr = dev->base_addr;
3083         u16 scb_cs;
3084         fd_t fd;
3085         rbd_t rbd;
3086         u16 rx;
3087         u16 rx_next;
3088         int i;
3089
3090 #ifdef DEBUG_CONFIG_TRACE
3091         printk(KERN_DEBUG "%s: ->wv_ru_start()\n", dev->name);
3092 #endif
3093
3094         obram_read(ioaddr, scboff(OFFSET_SCB, scb_status),
3095                    (unsigned char *) &scb_cs, sizeof(scb_cs));
3096         if ((scb_cs & SCB_ST_RUS) == SCB_ST_RUS_RDY)
3097                 return 0;
3098
3099         lp->rx_head = OFFSET_RU;
3100
3101         for (i = 0, rx = lp->rx_head; i < NRXBLOCKS; i++, rx = rx_next) {
3102                 rx_next =
3103                     (i == NRXBLOCKS - 1) ? lp->rx_head : rx + RXBLOCKZ;
3104
3105                 fd.fd_status = 0;
3106                 fd.fd_command = (i == NRXBLOCKS - 1) ? FD_COMMAND_EL : 0;
3107                 fd.fd_link_offset = rx_next;
3108                 fd.fd_rbd_offset = rx + sizeof(fd);
3109                 obram_write(ioaddr, rx, (unsigned char *) &fd, sizeof(fd));
3110
3111                 rbd.rbd_status = 0;
3112                 rbd.rbd_next_rbd_offset = I82586NULL;
3113                 rbd.rbd_bufl = rx + sizeof(fd) + sizeof(rbd);
3114                 rbd.rbd_bufh = 0;
3115                 rbd.rbd_el_size = RBD_EL | (RBD_SIZE & MAXDATAZ);
3116                 obram_write(ioaddr, rx + sizeof(fd),
3117                             (unsigned char *) &rbd, sizeof(rbd));
3118
3119                 lp->rx_last = rx;
3120         }
3121
3122         obram_write(ioaddr, scboff(OFFSET_SCB, scb_rfa_offset),
3123                     (unsigned char *) &lp->rx_head, sizeof(lp->rx_head));
3124
3125         scb_cs = SCB_CMD_RUC_GO;
3126         obram_write(ioaddr, scboff(OFFSET_SCB, scb_command),
3127                     (unsigned char *) &scb_cs, sizeof(scb_cs));
3128
3129         set_chan_attn(ioaddr, lp->hacr);
3130
3131         for (i = 1000; i > 0; i--) {
3132                 obram_read(ioaddr, scboff(OFFSET_SCB, scb_command),
3133                            (unsigned char *) &scb_cs, sizeof(scb_cs));
3134                 if (scb_cs == 0)
3135                         break;
3136
3137                 udelay(10);
3138         }
3139
3140         if (i <= 0) {
3141 #ifdef DEBUG_CONFIG_ERROR
3142                 printk(KERN_INFO
3143                        "%s: wavelan_ru_start(): board not accepting command.\n",
3144                        dev->name);
3145 #endif
3146                 return -1;
3147         }
3148 #ifdef DEBUG_CONFIG_TRACE
3149         printk(KERN_DEBUG "%s: <-wv_ru_start()\n", dev->name);
3150 #endif
3151         return 0;
3152 }
3153
3154 /*------------------------------------------------------------------*/
3155 /*
3156  * Initialise the transmit blocks.
3157  * Start the command unit executing the NOP
3158  * self-loop of the first transmit block.
3159  *
3160  * Here we create the list of send buffers used to transmit packets
3161  * between the PC and the command unit. For each buffer, we create a
3162  * buffer descriptor (pointing on the buffer), a transmit command
3163  * (pointing to the buffer descriptor) and a NOP command.
3164  * The transmit command is linked to the NOP, and the NOP to itself.
3165  * When we will have finished executing the transmit command, we will
3166  * then loop on the NOP. By releasing the NOP link to a new command,
3167  * we may send another buffer.
3168  *
3169  * (called by wv_hw_reset())
3170  */
3171 static int wv_cu_start(struct net_device * dev)
3172 {
3173         net_local *lp = netdev_priv(dev);
3174         unsigned long ioaddr = dev->base_addr;
3175         int i;
3176         u16 txblock;
3177         u16 first_nop;
3178         u16 scb_cs;
3179
3180 #ifdef DEBUG_CONFIG_TRACE
3181         printk(KERN_DEBUG "%s: ->wv_cu_start()\n", dev->name);
3182 #endif
3183
3184         lp->tx_first_free = OFFSET_CU;
3185         lp->tx_first_in_use = I82586NULL;
3186
3187         for (i = 0, txblock = OFFSET_CU;
3188              i < NTXBLOCKS; i++, txblock += TXBLOCKZ) {
3189                 ac_tx_t tx;
3190                 ac_nop_t nop;
3191                 tbd_t tbd;
3192                 unsigned short tx_addr;
3193                 unsigned short nop_addr;
3194                 unsigned short tbd_addr;
3195                 unsigned short buf_addr;
3196
3197                 tx_addr = txblock;
3198                 nop_addr = tx_addr + sizeof(tx);
3199                 tbd_addr = nop_addr + sizeof(nop);
3200                 buf_addr = tbd_addr + sizeof(tbd);
3201
3202                 tx.tx_h.ac_status = 0;
3203                 tx.tx_h.ac_command = acmd_transmit | AC_CFLD_I;
3204                 tx.tx_h.ac_link = nop_addr;
3205                 tx.tx_tbd_offset = tbd_addr;
3206                 obram_write(ioaddr, tx_addr, (unsigned char *) &tx,
3207                             sizeof(tx));
3208
3209                 nop.nop_h.ac_status = 0;
3210                 nop.nop_h.ac_command = acmd_nop;
3211                 nop.nop_h.ac_link = nop_addr;
3212                 obram_write(ioaddr, nop_addr, (unsigned char *) &nop,
3213                             sizeof(nop));
3214
3215                 tbd.tbd_status = TBD_STATUS_EOF;
3216                 tbd.tbd_next_bd_offset = I82586NULL;
3217                 tbd.tbd_bufl = buf_addr;
3218                 tbd.tbd_bufh = 0;
3219                 obram_write(ioaddr, tbd_addr, (unsigned char *) &tbd,
3220                             sizeof(tbd));
3221         }
3222
3223         first_nop =
3224             OFFSET_CU + (NTXBLOCKS - 1) * TXBLOCKZ + sizeof(ac_tx_t);
3225         obram_write(ioaddr, scboff(OFFSET_SCB, scb_cbl_offset),
3226                     (unsigned char *) &first_nop, sizeof(first_nop));
3227
3228         scb_cs = SCB_CMD_CUC_GO;
3229         obram_write(ioaddr, scboff(OFFSET_SCB, scb_command),
3230                     (unsigned char *) &scb_cs, sizeof(scb_cs));
3231
3232         set_chan_attn(ioaddr, lp->hacr);
3233
3234         for (i = 1000; i > 0; i--) {
3235                 obram_read(ioaddr, scboff(OFFSET_SCB, scb_command),
3236                            (unsigned char *) &scb_cs, sizeof(scb_cs));
3237                 if (scb_cs == 0)
3238                         break;
3239
3240                 udelay(10);
3241         }
3242
3243         if (i <= 0) {
3244 #ifdef DEBUG_CONFIG_ERROR
3245                 printk(KERN_INFO
3246                        "%s: wavelan_cu_start(): board not accepting command.\n",
3247                        dev->name);
3248 #endif
3249                 return -1;
3250         }
3251
3252         lp->tx_n_in_use = 0;
3253         netif_start_queue(dev);
3254 #ifdef DEBUG_CONFIG_TRACE
3255         printk(KERN_DEBUG "%s: <-wv_cu_start()\n", dev->name);
3256 #endif
3257         return 0;
3258 }
3259
3260 /*------------------------------------------------------------------*/
3261 /*
3262  * This routine does a standard configuration of the WaveLAN
3263  * controller (i82586).
3264  *
3265  * It initialises the scp, iscp and scb structure
3266  * The first two are just pointers to the next.
3267  * The last one is used for basic configuration and for basic
3268  * communication (interrupt status).
3269  *
3270  * (called by wv_hw_reset())
3271  */
3272 static int wv_82586_start(struct net_device * dev)
3273 {
3274         net_local *lp = netdev_priv(dev);
3275         unsigned long ioaddr = dev->base_addr;
3276         scp_t scp;              /* system configuration pointer */
3277         iscp_t iscp;            /* intermediate scp */
3278         scb_t scb;              /* system control block */
3279         ach_t cb;               /* Action command header */
3280         u8 zeroes[512];
3281         int i;
3282
3283 #ifdef DEBUG_CONFIG_TRACE
3284         printk(KERN_DEBUG "%s: ->wv_82586_start()\n", dev->name);
3285 #endif
3286
3287         /*
3288          * Clear the onboard RAM.
3289          */
3290         memset(&zeroes[0], 0x00, sizeof(zeroes));
3291         for (i = 0; i < I82586_MEMZ; i += sizeof(zeroes))
3292                 obram_write(ioaddr, i, &zeroes[0], sizeof(zeroes));
3293
3294         /*
3295          * Construct the command unit structures:
3296          * scp, iscp, scb, cb.
3297          */
3298         memset(&scp, 0x00, sizeof(scp));
3299         scp.scp_sysbus = SCP_SY_16BBUS;
3300         scp.scp_iscpl = OFFSET_ISCP;
3301         obram_write(ioaddr, OFFSET_SCP, (unsigned char *) &scp,
3302                     sizeof(scp));
3303
3304         memset(&iscp, 0x00, sizeof(iscp));
3305         iscp.iscp_busy = 1;
3306         iscp.iscp_offset = OFFSET_SCB;
3307         obram_write(ioaddr, OFFSET_ISCP, (unsigned char *) &iscp,
3308                     sizeof(iscp));
3309
3310         /* Our first command is to reset the i82586. */
3311         memset(&scb, 0x00, sizeof(scb));
3312         scb.scb_command = SCB_CMD_RESET;
3313         scb.scb_cbl_offset = OFFSET_CU;
3314         scb.scb_rfa_offset = OFFSET_RU;
3315         obram_write(ioaddr, OFFSET_SCB, (unsigned char *) &scb,
3316                     sizeof(scb));
3317
3318         set_chan_attn(ioaddr, lp->hacr);
3319
3320         /* Wait for command to finish. */
3321         for (i = 1000; i > 0; i--) {
3322                 obram_read(ioaddr, OFFSET_ISCP, (unsigned char *) &iscp,
3323                            sizeof(iscp));
3324
3325                 if (iscp.iscp_busy == (unsigned short) 0)
3326                         break;
3327
3328                 udelay(10);
3329         }
3330
3331         if (i <= 0) {
3332 #ifdef DEBUG_CONFIG_ERROR
3333                 printk(KERN_INFO
3334                        "%s: wv_82586_start(): iscp_busy timeout.\n",
3335                        dev->name);
3336 #endif
3337                 return -1;
3338         }
3339
3340         /* Check command completion. */
3341         for (i = 15; i > 0; i--) {
3342                 obram_read(ioaddr, OFFSET_SCB, (unsigned char *) &scb,
3343                            sizeof(scb));
3344
3345                 if (scb.scb_status == (SCB_ST_CX | SCB_ST_CNA))
3346                         break;
3347
3348                 udelay(10);
3349         }
3350
3351         if (i <= 0) {
3352 #ifdef DEBUG_CONFIG_ERROR
3353                 printk(KERN_INFO
3354                        "%s: wv_82586_start(): status: expected 0x%02x, got 0x%02x.\n",
3355                        dev->name, SCB_ST_CX | SCB_ST_CNA, scb.scb_status);
3356 #endif
3357                 return -1;
3358         }
3359
3360         wv_ack(dev);
3361
3362         /* Set the action command header. */
3363         memset(&cb, 0x00, sizeof(cb));
3364         cb.ac_command = AC_CFLD_EL | (AC_CFLD_CMD & acmd_diagnose);
3365         cb.ac_link = OFFSET_CU;
3366         obram_write(ioaddr, OFFSET_CU, (unsigned char *) &cb, sizeof(cb));
3367
3368         if (wv_synchronous_cmd(dev, "diag()") == -1)
3369                 return -1;
3370
3371         obram_read(ioaddr, OFFSET_CU, (unsigned char *) &cb, sizeof(cb));
3372         if (cb.ac_status & AC_SFLD_FAIL) {
3373 #ifdef DEBUG_CONFIG_ERROR
3374                 printk(KERN_INFO
3375                        "%s: wv_82586_start(): i82586 Self Test failed.\n",
3376                        dev->name);
3377 #endif
3378                 return -1;
3379         }
3380 #ifdef DEBUG_I82586_SHOW
3381         wv_scb_show(ioaddr);
3382 #endif
3383
3384 #ifdef DEBUG_CONFIG_TRACE
3385         printk(KERN_DEBUG "%s: <-wv_82586_start()\n", dev->name);
3386 #endif
3387         return 0;
3388 }
3389
3390 /*------------------------------------------------------------------*/
3391 /*
3392  * This routine does a standard configuration of the WaveLAN
3393  * controller (i82586).
3394  *
3395  * This routine is a violent hack. We use the first free transmit block
3396  * to make our configuration. In the buffer area, we create the three
3397  * configuration commands (linked). We make the previous NOP point to
3398  * the beginning of the buffer instead of the tx command. After, we go
3399  * as usual to the NOP command.
3400  * Note that only the last command (mc_set) will generate an interrupt.
3401  *
3402  * (called by wv_hw_reset(), wv_82586_reconfig(), wavelan_packet_xmit())
3403  */
3404 static void wv_82586_config(struct net_device * dev)
3405 {
3406         net_local *lp = netdev_priv(dev);
3407         unsigned long ioaddr = dev->base_addr;
3408         unsigned short txblock;
3409         unsigned short txpred;
3410         unsigned short tx_addr;
3411         unsigned short nop_addr;
3412         unsigned short tbd_addr;
3413         unsigned short cfg_addr;
3414         unsigned short ias_addr;
3415         unsigned short mcs_addr;
3416         ac_tx_t tx;
3417         ac_nop_t nop;
3418         ac_cfg_t cfg;           /* Configure action */
3419         ac_ias_t ias;           /* IA-setup action */
3420         ac_mcs_t mcs;           /* Multicast setup */
3421         struct dev_mc_list *dmi;
3422
3423 #ifdef DEBUG_CONFIG_TRACE
3424         printk(KERN_DEBUG "%s: ->wv_82586_config()\n", dev->name);
3425 #endif
3426
3427         /* Check nothing bad has happened */
3428         if (lp->tx_n_in_use == (NTXBLOCKS - 1)) {
3429 #ifdef DEBUG_CONFIG_ERROR
3430                 printk(KERN_INFO "%s: wv_82586_config(): Tx queue full.\n",
3431                        dev->name);
3432 #endif
3433                 return;
3434         }
3435
3436         /* Calculate addresses of next block and previous block. */
3437         txblock = lp->tx_first_free;
3438         txpred = txblock - TXBLOCKZ;
3439         if (txpred < OFFSET_CU)
3440                 txpred += NTXBLOCKS * TXBLOCKZ;
3441         lp->tx_first_free += TXBLOCKZ;
3442         if (lp->tx_first_free >= OFFSET_CU + NTXBLOCKS * TXBLOCKZ)
3443                 lp->tx_first_free -= NTXBLOCKS * TXBLOCKZ;
3444
3445         lp->tx_n_in_use++;
3446
3447         /* Calculate addresses of the different parts of the block. */
3448         tx_addr = txblock;
3449         nop_addr = tx_addr + sizeof(tx);
3450         tbd_addr = nop_addr + sizeof(nop);
3451         cfg_addr = tbd_addr + sizeof(tbd_t);    /* beginning of the buffer */
3452         ias_addr = cfg_addr + sizeof(cfg);
3453         mcs_addr = ias_addr + sizeof(ias);
3454
3455         /*
3456          * Transmit command
3457          */
3458         tx.tx_h.ac_status = 0xFFFF;     /* Fake completion value */
3459         obram_write(ioaddr, toff(ac_tx_t, tx_addr, tx_h.ac_status),
3460                     (unsigned char *) &tx.tx_h.ac_status,
3461                     sizeof(tx.tx_h.ac_status));
3462
3463         /*
3464          * NOP command
3465          */
3466         nop.nop_h.ac_status = 0;
3467         obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_status),
3468                     (unsigned char *) &nop.nop_h.ac_status,
3469                     sizeof(nop.nop_h.ac_status));
3470         nop.nop_h.ac_link = nop_addr;
3471         obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_link),
3472                     (unsigned char *) &nop.nop_h.ac_link,
3473                     sizeof(nop.nop_h.ac_link));
3474
3475         /* Create a configure action. */
3476         memset(&cfg, 0x00, sizeof(cfg));
3477
3478         /*
3479          * For Linux we invert AC_CFG_ALOC() so as to conform
3480          * to the way that net packets reach us from above.
3481          * (See also ac_tx_t.)
3482          *
3483          * Updated from Wavelan Manual WCIN085B
3484          */
3485         cfg.cfg_byte_cnt =
3486             AC_CFG_BYTE_CNT(sizeof(ac_cfg_t) - sizeof(ach_t));
3487         cfg.cfg_fifolim = AC_CFG_FIFOLIM(4);
3488         cfg.cfg_byte8 = AC_CFG_SAV_BF(1) | AC_CFG_SRDY(0);
3489         cfg.cfg_byte9 = AC_CFG_ELPBCK(0) |
3490             AC_CFG_ILPBCK(0) |
3491             AC_CFG_PRELEN(AC_CFG_PLEN_2) |
3492             AC_CFG_ALOC(1) | AC_CFG_ADDRLEN(WAVELAN_ADDR_SIZE);
3493         cfg.cfg_byte10 = AC_CFG_BOFMET(1) |
3494             AC_CFG_ACR(6) | AC_CFG_LINPRIO(0);
3495         cfg.cfg_ifs = 0x20;
3496         cfg.cfg_slotl = 0x0C;
3497         cfg.cfg_byte13 = AC_CFG_RETRYNUM(15) | AC_CFG_SLTTMHI(0);
3498         cfg.cfg_byte14 = AC_CFG_FLGPAD(0) |
3499             AC_CFG_BTSTF(0) |
3500             AC_CFG_CRC16(0) |
3501             AC_CFG_NCRC(0) |
3502             AC_CFG_TNCRS(1) |
3503             AC_CFG_MANCH(0) |
3504             AC_CFG_BCDIS(0) | AC_CFG_PRM(lp->promiscuous);
3505         cfg.cfg_byte15 = AC_CFG_ICDS(0) |
3506             AC_CFG_CDTF(0) | AC_CFG_ICSS(0) | AC_CFG_CSTF(0);
3507 /*
3508   cfg.cfg_min_frm_len = AC_CFG_MNFRM(64);
3509 */
3510         cfg.cfg_min_frm_len = AC_CFG_MNFRM(8);
3511
3512         cfg.cfg_h.ac_command = (AC_CFLD_CMD & acmd_configure);
3513         cfg.cfg_h.ac_link = ias_addr;
3514         obram_write(ioaddr, cfg_addr, (unsigned char *) &cfg, sizeof(cfg));
3515
3516         /* Set up the MAC address */
3517         memset(&ias, 0x00, sizeof(ias));
3518         ias.ias_h.ac_command = (AC_CFLD_CMD & acmd_ia_setup);
3519         ias.ias_h.ac_link = mcs_addr;
3520         memcpy(&ias.ias_addr[0], (unsigned char *) &dev->dev_addr[0],
3521                sizeof(ias.ias_addr));
3522         obram_write(ioaddr, ias_addr, (unsigned char *) &ias, sizeof(ias));
3523
3524         /* Initialize adapter's Ethernet multicast addresses */
3525         memset(&mcs, 0x00, sizeof(mcs));
3526         mcs.mcs_h.ac_command = AC_CFLD_I | (AC_CFLD_CMD & acmd_mc_setup);
3527         mcs.mcs_h.ac_link = nop_addr;
3528         mcs.mcs_cnt = WAVELAN_ADDR_SIZE * lp->mc_count;
3529         obram_write(ioaddr, mcs_addr, (unsigned char *) &mcs, sizeof(mcs));
3530
3531         /* Any address to set? */
3532         if (lp->mc_count) {
3533                 for (dmi = dev->mc_list; dmi; dmi = dmi->next)
3534                         outsw(PIOP1(ioaddr), (u16 *) dmi->dmi_addr,
3535                               WAVELAN_ADDR_SIZE >> 1);
3536
3537 #ifdef DEBUG_CONFIG_INFO
3538                 printk(KERN_DEBUG
3539                        "%s: wv_82586_config(): set %d multicast addresses:\n",
3540                        dev->name, lp->mc_count);
3541                 for (dmi = dev->mc_list; dmi; dmi = dmi->next)
3542                         printk(KERN_DEBUG " %pM\n", dmi->dmi_addr);
3543 #endif
3544         }
3545
3546         /*
3547          * Overwrite the predecessor NOP link
3548          * so that it points to the configure action.
3549          */
3550         nop_addr = txpred + sizeof(tx);
3551         nop.nop_h.ac_status = 0;
3552         obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_status),
3553                     (unsigned char *) &nop.nop_h.ac_status,
3554                     sizeof(nop.nop_h.ac_status));
3555         nop.nop_h.ac_link = cfg_addr;
3556         obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_link),
3557                     (unsigned char *) &nop.nop_h.ac_link,
3558                     sizeof(nop.nop_h.ac_link));
3559
3560         /* Job done, clear the flag */
3561         lp->reconfig_82586 = 0;
3562
3563         if (lp->tx_first_in_use == I82586NULL)
3564                 lp->tx_first_in_use = txblock;
3565
3566         if (lp->tx_n_in_use == (NTXBLOCKS - 1))
3567                 netif_stop_queue(dev);
3568
3569 #ifdef DEBUG_CONFIG_TRACE
3570         printk(KERN_DEBUG "%s: <-wv_82586_config()\n", dev->name);
3571 #endif
3572 }
3573
3574 /*------------------------------------------------------------------*/
3575 /*
3576  * This routine, called by wavelan_close(), gracefully stops the
3577  * WaveLAN controller (i82586).
3578  * (called by wavelan_close())
3579  */
3580 static void wv_82586_stop(struct net_device * dev)
3581 {
3582         net_local *lp = netdev_priv(dev);
3583         unsigned long ioaddr = dev->base_addr;
3584         u16 scb_cmd;
3585
3586 #ifdef DEBUG_CONFIG_TRACE
3587         printk(KERN_DEBUG "%s: ->wv_82586_stop()\n", dev->name);
3588 #endif
3589
3590         /* Suspend both command unit and receive unit. */
3591         scb_cmd =
3592             (SCB_CMD_CUC & SCB_CMD_CUC_SUS) | (SCB_CMD_RUC &
3593                                                SCB_CMD_RUC_SUS);
3594         obram_write(ioaddr, scboff(OFFSET_SCB, scb_command),
3595                     (unsigned char *) &scb_cmd, sizeof(scb_cmd));
3596         set_chan_attn(ioaddr, lp->hacr);
3597
3598         /* No more interrupts */
3599         wv_ints_off(dev);
3600
3601 #ifdef DEBUG_CONFIG_TRACE
3602         printk(KERN_DEBUG "%s: <-wv_82586_stop()\n", dev->name);
3603 #endif
3604 }
3605
3606 /*------------------------------------------------------------------*/
3607 /*
3608  * Totally reset the WaveLAN and restart it.
3609  * Performs the following actions:
3610  *      1. A power reset (reset DMA)
3611  *      2. Initialize the radio modem (using wv_mmc_init)
3612  *      3. Reset & Configure LAN controller (using wv_82586_start)
3613  *      4. Start the LAN controller's command unit
3614  *      5. Start the LAN controller's receive unit
3615  * (called by wavelan_interrupt(), wavelan_watchdog() & wavelan_open())
3616  */
3617 static int wv_hw_reset(struct net_device * dev)
3618 {
3619         net_local *lp = netdev_priv(dev);
3620         unsigned long ioaddr = dev->base_addr;
3621
3622 #ifdef DEBUG_CONFIG_TRACE
3623         printk(KERN_DEBUG "%s: ->wv_hw_reset(dev=0x%x)\n", dev->name,
3624                (unsigned int) dev);
3625 #endif
3626
3627         /* Increase the number of resets done. */
3628         lp->nresets++;
3629
3630         wv_hacr_reset(ioaddr);
3631         lp->hacr = HACR_DEFAULT;
3632
3633         if ((wv_mmc_init(dev) < 0) || (wv_82586_start(dev) < 0))
3634                 return -1;
3635
3636         /* Enable the card to send interrupts. */
3637         wv_ints_on(dev);
3638
3639         /* Start card functions */
3640         if (wv_cu_start(dev) < 0)
3641                 return -1;
3642
3643         /* Setup the controller and parameters */
3644         wv_82586_config(dev);
3645
3646         /* Finish configuration with the receive unit */
3647         if (wv_ru_start(dev) < 0)
3648                 return -1;
3649
3650 #ifdef DEBUG_CONFIG_TRACE
3651         printk(KERN_DEBUG "%s: <-wv_hw_reset()\n", dev->name);
3652 #endif
3653         return 0;
3654 }
3655
3656 /*------------------------------------------------------------------*/
3657 /*
3658  * Check if there is a WaveLAN at the specific base address.
3659  * As a side effect, this reads the MAC address.
3660  * (called in wavelan_probe() and init_module())
3661  */
3662 static int wv_check_ioaddr(unsigned long ioaddr, u8 * mac)
3663 {
3664         int i;                  /* Loop counter */
3665
3666         /* Check if the base address if available. */
3667         if (!request_region(ioaddr, sizeof(ha_t), "wavelan probe"))
3668                 return -EBUSY;          /* ioaddr already used */
3669
3670         /* Reset host interface */
3671         wv_hacr_reset(ioaddr);
3672
3673         /* Read the MAC address from the parameter storage area. */
3674         psa_read(ioaddr, HACR_DEFAULT, psaoff(0, psa_univ_mac_addr),
3675                  mac, 6);
3676
3677         release_region(ioaddr, sizeof(ha_t));
3678
3679         /*
3680          * Check the first three octets of the address for the manufacturer's code.
3681          * Note: if this can't find your WaveLAN card, you've got a
3682          * non-NCR/AT&T/Lucent ISA card.  See wavelan.p.h for detail on
3683          * how to configure your card.
3684          */
3685         for (i = 0; i < ARRAY_SIZE(MAC_ADDRESSES); i++)
3686                 if ((mac[0] == MAC_ADDRESSES[i][0]) &&
3687                     (mac[1] == MAC_ADDRESSES[i][1]) &&
3688                     (mac[2] == MAC_ADDRESSES[i][2]))
3689                         return 0;
3690
3691 #ifdef DEBUG_CONFIG_INFO
3692         printk(KERN_WARNING
3693                "WaveLAN (0x%3X): your MAC address might be %02X:%02X:%02X.\n",
3694                ioaddr, mac[0], mac[1], mac[2]);
3695 #endif
3696         return -ENODEV;
3697 }
3698
3699 /************************ INTERRUPT HANDLING ************************/
3700
3701 /*
3702  * This function is the interrupt handler for the WaveLAN card. This
3703  * routine will be called whenever:
3704  */
3705 static irqreturn_t wavelan_interrupt(int irq, void *dev_id)
3706 {
3707         struct net_device *dev;
3708         unsigned long ioaddr;
3709         net_local *lp;
3710         u16 hasr;
3711         u16 status;
3712         u16 ack_cmd;
3713
3714         dev = dev_id;
3715
3716 #ifdef DEBUG_INTERRUPT_TRACE
3717         printk(KERN_DEBUG "%s: ->wavelan_interrupt()\n", dev->name);
3718 #endif
3719
3720         lp = netdev_priv(dev);
3721         ioaddr = dev->base_addr;
3722
3723 #ifdef DEBUG_INTERRUPT_INFO
3724         /* Check state of our spinlock */
3725         if(spin_is_locked(&lp->spinlock))
3726                 printk(KERN_DEBUG
3727                        "%s: wavelan_interrupt(): spinlock is already locked !!!\n",
3728                        dev->name);
3729 #endif
3730
3731         /* Prevent reentrancy. We need to do that because we may have
3732          * multiple interrupt handler running concurrently.
3733          * It is safe because interrupts are disabled before acquiring
3734          * the spinlock. */
3735         spin_lock(&lp->spinlock);
3736
3737         /* We always had spurious interrupts at startup, but lately I
3738          * saw them comming *between* the request_irq() and the
3739          * spin_lock_irqsave() in wavelan_open(), so the spinlock
3740          * protection is no enough.
3741          * So, we also check lp->hacr that will tell us is we enabled
3742          * irqs or not (see wv_ints_on()).
3743          * We can't use netif_running(dev) because we depend on the
3744          * proper processing of the irq generated during the config. */
3745
3746         /* Which interrupt it is ? */
3747         hasr = hasr_read(ioaddr);
3748
3749 #ifdef DEBUG_INTERRUPT_INFO
3750         printk(KERN_INFO
3751                "%s: wavelan_interrupt(): hasr 0x%04x; hacr 0x%04x.\n",
3752                dev->name, hasr, lp->hacr);
3753 #endif
3754
3755         /* Check modem interrupt */
3756         if ((hasr & HASR_MMC_INTR) && (lp->hacr & HACR_MMC_INT_ENABLE)) {
3757                 u8 dce_status;
3758
3759                 /*
3760                  * Interrupt from the modem management controller.
3761                  * This will clear it -- ignored for now.
3762                  */
3763                 mmc_read(ioaddr, mmroff(0, mmr_dce_status), &dce_status,
3764                          sizeof(dce_status));
3765
3766 #ifdef DEBUG_INTERRUPT_ERROR
3767                 printk(KERN_INFO
3768                        "%s: wavelan_interrupt(): unexpected mmc interrupt: status 0x%04x.\n",
3769                        dev->name, dce_status);
3770 #endif
3771         }
3772
3773         /* Check if not controller interrupt */
3774         if (((hasr & HASR_82586_INTR) == 0) ||
3775             ((lp->hacr & HACR_82586_INT_ENABLE) == 0)) {
3776 #ifdef DEBUG_INTERRUPT_ERROR
3777                 printk(KERN_INFO
3778                        "%s: wavelan_interrupt(): interrupt not coming from i82586 - hasr 0x%04x.\n",
3779                        dev->name, hasr);
3780 #endif
3781                 spin_unlock (&lp->spinlock);
3782                 return IRQ_NONE;
3783         }
3784
3785         /* Read interrupt data. */
3786         obram_read(ioaddr, scboff(OFFSET_SCB, scb_status),
3787                    (unsigned char *) &status, sizeof(status));
3788
3789         /*
3790          * Acknowledge the interrupt(s).
3791          */
3792         ack_cmd = status & SCB_ST_INT;
3793         obram_write(ioaddr, scboff(OFFSET_SCB, scb_command),
3794                     (unsigned char *) &ack_cmd, sizeof(ack_cmd));
3795         set_chan_attn(ioaddr, lp->hacr);
3796
3797 #ifdef DEBUG_INTERRUPT_INFO
3798         printk(KERN_DEBUG "%s: wavelan_interrupt(): status 0x%04x.\n",
3799                dev->name, status);
3800 #endif
3801
3802         /* Command completed. */
3803         if ((status & SCB_ST_CX) == SCB_ST_CX) {
3804 #ifdef DEBUG_INTERRUPT_INFO
3805                 printk(KERN_DEBUG
3806                        "%s: wavelan_interrupt(): command completed.\n",
3807                        dev->name);
3808 #endif
3809                 wv_complete(dev, ioaddr, lp);
3810         }
3811
3812         /* Frame received. */
3813         if ((status & SCB_ST_FR) == SCB_ST_FR) {
3814 #ifdef DEBUG_INTERRUPT_INFO
3815                 printk(KERN_DEBUG
3816                        "%s: wavelan_interrupt(): received packet.\n",
3817                        dev->name);
3818 #endif
3819                 wv_receive(dev);
3820         }
3821
3822         /* Check the state of the command unit. */
3823         if (((status & SCB_ST_CNA) == SCB_ST_CNA) ||
3824             (((status & SCB_ST_CUS) != SCB_ST_CUS_ACTV) &&
3825              (netif_running(dev)))) {
3826 #ifdef DEBUG_INTERRUPT_ERROR
3827                 printk(KERN_INFO
3828                        "%s: wavelan_interrupt(): CU inactive -- restarting\n",
3829                        dev->name);
3830 #endif
3831                 wv_hw_reset(dev);
3832         }
3833
3834         /* Check the state of the command unit. */
3835         if (((status & SCB_ST_RNR) == SCB_ST_RNR) ||
3836             (((status & SCB_ST_RUS) != SCB_ST_RUS_RDY) &&
3837              (netif_running(dev)))) {
3838 #ifdef DEBUG_INTERRUPT_ERROR
3839                 printk(KERN_INFO
3840                        "%s: wavelan_interrupt(): RU not ready -- restarting\n",
3841                        dev->name);
3842 #endif
3843                 wv_hw_reset(dev);
3844         }
3845
3846         /* Release spinlock */
3847         spin_unlock (&lp->spinlock);
3848
3849 #ifdef DEBUG_INTERRUPT_TRACE
3850         printk(KERN_DEBUG "%s: <-wavelan_interrupt()\n", dev->name);
3851 #endif
3852         return IRQ_HANDLED;
3853 }
3854
3855 /*------------------------------------------------------------------*/
3856 /*
3857  * Watchdog: when we start a transmission, a timer is set for us in the
3858  * kernel.  If the transmission completes, this timer is disabled. If
3859  * the timer expires, we are called and we try to unlock the hardware.
3860  */
3861 static void wavelan_watchdog(struct net_device *        dev)
3862 {
3863         net_local *lp = netdev_priv(dev);
3864         u_long          ioaddr = dev->base_addr;
3865         unsigned long   flags;
3866         unsigned int    nreaped;
3867
3868 #ifdef DEBUG_INTERRUPT_TRACE
3869         printk(KERN_DEBUG "%s: ->wavelan_watchdog()\n", dev->name);
3870 #endif
3871
3872 #ifdef DEBUG_INTERRUPT_ERROR
3873         printk(KERN_INFO "%s: wavelan_watchdog: watchdog timer expired\n",
3874                dev->name);
3875 #endif
3876
3877         /* Check that we came here for something */
3878         if (lp->tx_n_in_use <= 0) {
3879                 return;
3880         }
3881
3882         spin_lock_irqsave(&lp->spinlock, flags);
3883
3884         /* Try to see if some buffers are not free (in case we missed
3885          * an interrupt */
3886         nreaped = wv_complete(dev, ioaddr, lp);
3887
3888 #ifdef DEBUG_INTERRUPT_INFO
3889         printk(KERN_DEBUG
3890                "%s: wavelan_watchdog(): %d reaped, %d remain.\n",
3891                dev->name, nreaped, lp->tx_n_in_use);
3892 #endif
3893
3894 #ifdef DEBUG_PSA_SHOW
3895         {
3896                 psa_t psa;
3897                 psa_read(dev, 0, (unsigned char *) &psa, sizeof(psa));
3898                 wv_psa_show(&psa);
3899         }
3900 #endif
3901 #ifdef DEBUG_MMC_SHOW
3902         wv_mmc_show(dev);
3903 #endif
3904 #ifdef DEBUG_I82586_SHOW
3905         wv_cu_show(dev);
3906 #endif
3907
3908         /* If no buffer has been freed */
3909         if (nreaped == 0) {
3910 #ifdef DEBUG_INTERRUPT_ERROR
3911                 printk(KERN_INFO
3912                        "%s: wavelan_watchdog(): cleanup failed, trying reset\n",
3913                        dev->name);
3914 #endif
3915                 wv_hw_reset(dev);
3916         }
3917
3918         /* At this point, we should have some free Tx buffer ;-) */
3919         if (lp->tx_n_in_use < NTXBLOCKS - 1)
3920                 netif_wake_queue(dev);
3921
3922         spin_unlock_irqrestore(&lp->spinlock, flags);
3923
3924 #ifdef DEBUG_INTERRUPT_TRACE
3925         printk(KERN_DEBUG "%s: <-wavelan_watchdog()\n", dev->name);
3926 #endif
3927 }
3928
3929 /********************* CONFIGURATION CALLBACKS *********************/
3930 /*
3931  * Here are the functions called by the Linux networking code (NET3)
3932  * for initialization, configuration and deinstallations of the
3933  * WaveLAN ISA hardware.
3934  */
3935
3936 /*------------------------------------------------------------------*/
3937 /*
3938  * Configure and start up the WaveLAN PCMCIA adaptor.
3939  * Called by NET3 when it "opens" the device.
3940  */
3941 static int wavelan_open(struct net_device * dev)
3942 {
3943         net_local *lp = netdev_priv(dev);
3944         unsigned long   flags;
3945
3946 #ifdef DEBUG_CALLBACK_TRACE
3947         printk(KERN_DEBUG "%s: ->wavelan_open(dev=0x%x)\n", dev->name,
3948                (unsigned int) dev);
3949 #endif
3950
3951         /* Check irq */
3952         if (dev->irq == 0) {
3953 #ifdef DEBUG_CONFIG_ERROR
3954                 printk(KERN_WARNING "%s: wavelan_open(): no IRQ\n",
3955                        dev->name);
3956 #endif
3957                 return -ENXIO;
3958         }
3959
3960         if (request_irq(dev->irq, &wavelan_interrupt, 0, "WaveLAN", dev) != 0)
3961         {
3962 #ifdef DEBUG_CONFIG_ERROR
3963                 printk(KERN_WARNING "%s: wavelan_open(): invalid IRQ\n",
3964                        dev->name);
3965 #endif
3966                 return -EAGAIN;
3967         }
3968
3969         spin_lock_irqsave(&lp->spinlock, flags);
3970
3971         if (wv_hw_reset(dev) != -1) {
3972                 netif_start_queue(dev);
3973         } else {
3974                 free_irq(dev->irq, dev);
3975 #ifdef DEBUG_CONFIG_ERROR
3976                 printk(KERN_INFO
3977                        "%s: wavelan_open(): impossible to start the card\n",
3978                        dev->name);
3979 #endif
3980                 spin_unlock_irqrestore(&lp->spinlock, flags);
3981                 return -EAGAIN;
3982         }
3983         spin_unlock_irqrestore(&lp->spinlock, flags);
3984
3985 #ifdef DEBUG_CALLBACK_TRACE
3986         printk(KERN_DEBUG "%s: <-wavelan_open()\n", dev->name);
3987 #endif
3988         return 0;
3989 }
3990
3991 /*------------------------------------------------------------------*/
3992 /*
3993  * Shut down the WaveLAN ISA card.
3994  * Called by NET3 when it "closes" the device.
3995  */
3996 static int wavelan_close(struct net_device * dev)
3997 {
3998         net_local *lp = netdev_priv(dev);
3999         unsigned long flags;
4000
4001 #ifdef DEBUG_CALLBACK_TRACE
4002         printk(KERN_DEBUG "%s: ->wavelan_close(dev=0x%x)\n", dev->name,
4003                (unsigned int) dev);
4004 #endif
4005
4006         netif_stop_queue(dev);
4007
4008         /*
4009          * Flush the Tx and disable Rx.
4010          */
4011         spin_lock_irqsave(&lp->spinlock, flags);
4012         wv_82586_stop(dev);
4013         spin_unlock_irqrestore(&lp->spinlock, flags);
4014
4015         free_irq(dev->irq, dev);
4016
4017 #ifdef DEBUG_CALLBACK_TRACE
4018         printk(KERN_DEBUG "%s: <-wavelan_close()\n", dev->name);
4019 #endif
4020         return 0;
4021 }
4022
4023 static const struct net_device_ops wavelan_netdev_ops = {
4024         .ndo_open               = wavelan_open,
4025         .ndo_stop               = wavelan_close,
4026         .ndo_start_xmit         = wavelan_packet_xmit,
4027         .ndo_set_multicast_list = wavelan_set_multicast_list,
4028         .ndo_tx_timeout         = wavelan_watchdog,
4029         .ndo_change_mtu         = eth_change_mtu,
4030         .ndo_validate_addr      = eth_validate_addr,
4031 #ifdef SET_MAC_ADDRESS
4032         .ndo_set_mac_address    = wavelan_set_mac_address
4033 #else
4034         .ndo_set_mac_address    = eth_mac_addr,
4035 #endif
4036 };
4037
4038
4039 /*------------------------------------------------------------------*/
4040 /*
4041  * Probe an I/O address, and if the WaveLAN is there configure the
4042  * device structure
4043  * (called by wavelan_probe() and via init_module()).
4044  */
4045 static int __init wavelan_config(struct net_device *dev, unsigned short ioaddr)
4046 {
4047         u8 irq_mask;
4048         int irq;
4049         net_local *lp;
4050         mac_addr mac;
4051         int err;
4052
4053         if (!request_region(ioaddr, sizeof(ha_t), "wavelan"))
4054                 return -EADDRINUSE;
4055
4056         err = wv_check_ioaddr(ioaddr, mac);
4057         if (err)
4058                 goto out;
4059
4060         memcpy(dev->dev_addr, mac, 6);
4061
4062         dev->base_addr = ioaddr;
4063
4064 #ifdef DEBUG_CALLBACK_TRACE
4065         printk(KERN_DEBUG "%s: ->wavelan_config(dev=0x%x, ioaddr=0x%lx)\n",
4066                dev->name, (unsigned int) dev, ioaddr);
4067 #endif
4068
4069         /* Check IRQ argument on command line. */
4070         if (dev->irq != 0) {
4071                 irq_mask = wv_irq_to_psa(dev->irq);
4072
4073                 if (irq_mask == 0) {
4074 #ifdef DEBUG_CONFIG_ERROR
4075                         printk(KERN_WARNING
4076                                "%s: wavelan_config(): invalid IRQ %d ignored.\n",
4077                                dev->name, dev->irq);
4078 #endif
4079                         dev->irq = 0;
4080                 } else {
4081 #ifdef DEBUG_CONFIG_INFO
4082                         printk(KERN_DEBUG
4083                                "%s: wavelan_config(): changing IRQ to %d\n",
4084                                dev->name, dev->irq);
4085 #endif
4086                         psa_write(ioaddr, HACR_DEFAULT,
4087                                   psaoff(0, psa_int_req_no), &irq_mask, 1);
4088                         /* update the Wavelan checksum */
4089                         update_psa_checksum(dev, ioaddr, HACR_DEFAULT);
4090                         wv_hacr_reset(ioaddr);
4091                 }
4092         }
4093
4094         psa_read(ioaddr, HACR_DEFAULT, psaoff(0, psa_int_req_no),
4095                  &irq_mask, 1);
4096         if ((irq = wv_psa_to_irq(irq_mask)) == -1) {
4097 #ifdef DEBUG_CONFIG_ERROR
4098                 printk(KERN_INFO
4099                        "%s: wavelan_config(): could not wavelan_map_irq(%d).\n",
4100                        dev->name, irq_mask);
4101 #endif
4102                 err = -EAGAIN;
4103                 goto out;
4104         }
4105
4106         dev->irq = irq;
4107
4108         dev->mem_start = 0x0000;
4109         dev->mem_end = 0x0000;
4110         dev->if_port = 0;
4111
4112         /* Initialize device structures */
4113         memset(netdev_priv(dev), 0, sizeof(net_local));
4114         lp = netdev_priv(dev);
4115
4116         /* Back link to the device structure. */
4117         lp->dev = dev;
4118         /* Add the device at the beginning of the linked list. */
4119         lp->next = wavelan_list;
4120         wavelan_list = lp;
4121
4122         lp->hacr = HACR_DEFAULT;
4123
4124         /* Multicast stuff */
4125         lp->promiscuous = 0;
4126         lp->mc_count = 0;
4127
4128         /* Init spinlock */
4129         spin_lock_init(&lp->spinlock);
4130
4131         dev->netdev_ops = &wavelan_netdev_ops;
4132         dev->watchdog_timeo = WATCHDOG_JIFFIES;
4133         dev->wireless_handlers = &wavelan_handler_def;
4134         lp->wireless_data.spy_data = &lp->spy_data;
4135         dev->wireless_data = &lp->wireless_data;
4136
4137         dev->mtu = WAVELAN_MTU;
4138
4139         /* Display nice information. */
4140         wv_init_info(dev);
4141
4142 #ifdef DEBUG_CALLBACK_TRACE
4143         printk(KERN_DEBUG "%s: <-wavelan_config()\n", dev->name);
4144 #endif
4145         return 0;
4146 out:
4147         release_region(ioaddr, sizeof(ha_t));
4148         return err;
4149 }
4150
4151 /*------------------------------------------------------------------*/
4152 /*
4153  * Check for a network adaptor of this type.  Return '0' iff one
4154  * exists.  There seem to be different interpretations of
4155  * the initial value of dev->base_addr.
4156  * We follow the example in drivers/net/ne.c.
4157  * (called in "Space.c")
4158  */
4159 struct net_device * __init wavelan_probe(int unit)
4160 {
4161         struct net_device *dev;
4162         short base_addr;
4163         int def_irq;
4164         int i;
4165         int r = 0;
4166
4167         /* compile-time check the sizes of structures */
4168         BUILD_BUG_ON(sizeof(psa_t) != PSA_SIZE);
4169         BUILD_BUG_ON(sizeof(mmw_t) != MMW_SIZE);
4170         BUILD_BUG_ON(sizeof(mmr_t) != MMR_SIZE);
4171         BUILD_BUG_ON(sizeof(ha_t) != HA_SIZE);
4172
4173         dev = alloc_etherdev(sizeof(net_local));
4174         if (!dev)
4175                 return ERR_PTR(-ENOMEM);
4176
4177         sprintf(dev->name, "eth%d", unit);
4178         netdev_boot_setup_check(dev);
4179         base_addr = dev->base_addr;
4180         def_irq = dev->irq;
4181
4182 #ifdef DEBUG_CALLBACK_TRACE
4183         printk(KERN_DEBUG
4184                "%s: ->wavelan_probe(dev=%p (base_addr=0x%x))\n",
4185                dev->name, dev, (unsigned int) dev->base_addr);
4186 #endif
4187
4188         /* Don't probe at all. */
4189         if (base_addr < 0) {
4190 #ifdef DEBUG_CONFIG_ERROR
4191                 printk(KERN_WARNING
4192                        "%s: wavelan_probe(): invalid base address\n",
4193                        dev->name);
4194 #endif
4195                 r = -ENXIO;
4196         } else if (base_addr > 0x100) { /* Check a single specified location. */
4197                 r = wavelan_config(dev, base_addr);
4198 #ifdef DEBUG_CONFIG_INFO
4199                 if (r != 0)
4200                         printk(KERN_DEBUG
4201                                "%s: wavelan_probe(): no device at specified base address (0x%X) or address already in use\n",
4202                                dev->name, base_addr);
4203 #endif
4204
4205 #ifdef DEBUG_CALLBACK_TRACE
4206                 printk(KERN_DEBUG "%s: <-wavelan_probe()\n", dev->name);
4207 #endif
4208         } else { /* Scan all possible addresses of the WaveLAN hardware. */
4209                 for (i = 0; i < ARRAY_SIZE(iobase); i++) {
4210                         dev->irq = def_irq;
4211                         if (wavelan_config(dev, iobase[i]) == 0) {
4212 #ifdef DEBUG_CALLBACK_TRACE
4213                                 printk(KERN_DEBUG
4214                                        "%s: <-wavelan_probe()\n",
4215                                        dev->name);
4216 #endif
4217                                 break;
4218                         }
4219                 }
4220                 if (i == ARRAY_SIZE(iobase))
4221                         r = -ENODEV;
4222         }
4223         if (r)
4224                 goto out;
4225         r = register_netdev(dev);
4226         if (r)
4227                 goto out1;
4228         return dev;
4229 out1:
4230         release_region(dev->base_addr, sizeof(ha_t));
4231         wavelan_list = wavelan_list->next;
4232 out:
4233         free_netdev(dev);
4234         return ERR_PTR(r);
4235 }
4236
4237 /****************************** MODULE ******************************/
4238 /*
4239  * Module entry point: insertion and removal
4240  */
4241
4242 #ifdef  MODULE
4243 /*------------------------------------------------------------------*/
4244 /*
4245  * Insertion of the module
4246  * I'm now quite proud of the multi-device support.
4247  */
4248 int __init init_module(void)
4249 {
4250         int ret = -EIO;         /* Return error if no cards found */
4251         int i;
4252
4253 #ifdef DEBUG_MODULE_TRACE
4254         printk(KERN_DEBUG "-> init_module()\n");
4255 #endif
4256
4257         /* If probing is asked */
4258         if (io[0] == 0) {
4259 #ifdef DEBUG_CONFIG_ERROR
4260                 printk(KERN_WARNING
4261                        "WaveLAN init_module(): doing device probing (bad !)\n");
4262                 printk(KERN_WARNING
4263                        "Specify base addresses while loading module to correct the problem\n");
4264 #endif
4265
4266                 /* Copy the basic set of address to be probed. */
4267                 for (i = 0; i < ARRAY_SIZE(iobase); i++)
4268                         io[i] = iobase[i];
4269         }
4270
4271
4272         /* Loop on all possible base addresses. */
4273         for (i = 0; i < ARRAY_SIZE(io) && io[i] != 0; i++) {
4274                 struct net_device *dev = alloc_etherdev(sizeof(net_local));
4275                 if (!dev)
4276                         break;
4277                 if (name[i])
4278                         strcpy(dev->name, name[i]);     /* Copy name */
4279                 dev->base_addr = io[i];
4280                 dev->irq = irq[i];
4281
4282                 /* Check if there is something at this base address. */
4283                 if (wavelan_config(dev, io[i]) == 0) {
4284                         if (register_netdev(dev) != 0) {
4285                                 release_region(dev->base_addr, sizeof(ha_t));
4286                                 wavelan_list = wavelan_list->next;
4287                         } else {
4288                                 ret = 0;
4289                                 continue;
4290                         }
4291                 }
4292                 free_netdev(dev);
4293         }
4294
4295 #ifdef DEBUG_CONFIG_ERROR
4296         if (!wavelan_list)
4297                 printk(KERN_WARNING
4298                        "WaveLAN init_module(): no device found\n");
4299 #endif
4300
4301 #ifdef DEBUG_MODULE_TRACE
4302         printk(KERN_DEBUG "<- init_module()\n");
4303 #endif
4304         return ret;
4305 }
4306
4307 /*------------------------------------------------------------------*/
4308 /*
4309  * Removal of the module
4310  */
4311 void cleanup_module(void)
4312 {
4313 #ifdef DEBUG_MODULE_TRACE
4314         printk(KERN_DEBUG "-> cleanup_module()\n");
4315 #endif
4316
4317         /* Loop on all devices and release them. */
4318         while (wavelan_list) {
4319                 struct net_device *dev = wavelan_list->dev;
4320
4321 #ifdef DEBUG_CONFIG_INFO
4322                 printk(KERN_DEBUG
4323                        "%s: cleanup_module(): removing device at 0x%x\n",
4324                        dev->name, (unsigned int) dev);
4325 #endif
4326                 unregister_netdev(dev);
4327
4328                 release_region(dev->base_addr, sizeof(ha_t));
4329                 wavelan_list = wavelan_list->next;
4330
4331                 free_netdev(dev);
4332         }
4333
4334 #ifdef DEBUG_MODULE_TRACE
4335         printk(KERN_DEBUG "<- cleanup_module()\n");
4336 #endif
4337 }
4338 #endif                          /* MODULE */
4339 MODULE_LICENSE("GPL");
4340
4341 /*
4342  * This software may only be used and distributed
4343  * according to the terms of the GNU General Public License.
4344  *
4345  * This software was developed as a component of the
4346  * Linux operating system.
4347  * It is based on other device drivers and information
4348  * either written or supplied by:
4349  *      Ajay Bakre (bakre@paul.rutgers.edu),
4350  *      Donald Becker (becker@scyld.com),
4351  *      Loeke Brederveld (Loeke.Brederveld@Utrecht.NCR.com),
4352  *      Anders Klemets (klemets@it.kth.se),
4353  *      Vladimir V. Kolpakov (w@stier.koenig.ru),
4354  *      Marc Meertens (Marc.Meertens@Utrecht.NCR.com),
4355  *      Pauline Middelink (middelin@polyware.iaf.nl),
4356  *      Robert Morris (rtm@das.harvard.edu),
4357  *      Jean Tourrilhes (jt@hplb.hpl.hp.com),
4358  *      Girish Welling (welling@paul.rutgers.edu),
4359  *
4360  * Thanks go also to:
4361  *      James Ashton (jaa101@syseng.anu.edu.au),
4362  *      Alan Cox (alan@lxorguk.ukuu.org.uk),
4363  *      Allan Creighton (allanc@cs.usyd.edu.au),
4364  *      Matthew Geier (matthew@cs.usyd.edu.au),
4365  *      Remo di Giovanni (remo@cs.usyd.edu.au),
4366  *      Eckhard Grah (grah@wrcs1.urz.uni-wuppertal.de),
4367  *      Vipul Gupta (vgupta@cs.binghamton.edu),
4368  *      Mark Hagan (mhagan@wtcpost.daytonoh.NCR.COM),
4369  *      Tim Nicholson (tim@cs.usyd.edu.au),
4370  *      Ian Parkin (ian@cs.usyd.edu.au),
4371  *      John Rosenberg (johnr@cs.usyd.edu.au),
4372  *      George Rossi (george@phm.gov.au),
4373  *      Arthur Scott (arthur@cs.usyd.edu.au),
4374  *      Peter Storey,
4375  * for their assistance and advice.
4376  *
4377  * Please send bug reports, updates, comments to:
4378  *
4379  * Bruce Janson                                    Email:  bruce@cs.usyd.edu.au
4380  * Basser Department of Computer Science           Phone:  +61-2-9351-3423
4381  * University of Sydney, N.S.W., 2006, AUSTRALIA   Fax:    +61-2-9351-3838
4382  */